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    <link:label id="lab_us-gaap_DisposalGroupIncludingDiscontinuedOperationInterestExpense_cad1d801-858f-4e22-b761-5d23a73a9e33_terseLabel_en-US" xlink:label="lab_us-gaap_DisposalGroupIncludingDiscontinuedOperationInterestExpense" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Interest expense</link:label>
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    <link:label id="lab_us-gaap_MinorityInterestTable_label_en-US" xlink:label="lab_us-gaap_MinorityInterestTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Noncontrolling Interest [Table]</link:label>
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    <link:label id="lab_us-gaap_BusinessAcquisitionAcquireeDomain_897ddbe5-596e-4bc7-baf2-9be79c86ad99_terseLabel_en-US" xlink:label="lab_us-gaap_BusinessAcquisitionAcquireeDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Business Acquisition, Acquiree [Domain]</link:label>
    <link:label id="lab_us-gaap_BusinessAcquisitionAcquireeDomain_label_en-US" xlink:label="lab_us-gaap_BusinessAcquisitionAcquireeDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Business Acquisition, Acquiree [Domain]</link:label>
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    <link:label id="lab_wsc_WarrantsIssuedInConnectionWithAcquisitionOfModularSpaceHoldingsMember_9bba5e9f-70b0-4190-b8e9-aa82451295e1_terseLabel_en-US" xlink:label="lab_wsc_WarrantsIssuedInConnectionWithAcquisitionOfModularSpaceHoldingsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Warrants, Issued in Connection with Acquisition of Modular Space Holdings</link:label>
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    <link:label id="lab_wsc_WarrantsIssuedInConnectionWithAcquisitionOfModularSpaceHoldingsMember_documentation_en-US" xlink:label="lab_wsc_WarrantsIssuedInConnectionWithAcquisitionOfModularSpaceHoldingsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Warrants, Issued in Connection with Acquisition of Modular Space Holdings</link:label>
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    <link:label id="lab_us-gaap_AccountingPoliciesAbstract_label_en-US" xlink:label="lab_us-gaap_AccountingPoliciesAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Accounting Policies [Abstract]</link:label>
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    <link:label id="lab_us-gaap_PrepaidExpenseAndOtherAssetsCurrent_bcda1500-f4cd-4e47-ad6b-d0c7fb96a85a_terseLabel_en-US" xlink:label="lab_us-gaap_PrepaidExpenseAndOtherAssetsCurrent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Prepaid expenses and other current assets</link:label>
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    <link:label id="lab_us-gaap_AdditionalPaidInCapitalMember_1f4c0d71-5e5b-4834-aa9b-db96dbaae9bc_terseLabel_en-US" xlink:label="lab_us-gaap_AdditionalPaidInCapitalMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Additional Paid in Capital</link:label>
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    <link:label id="lab_wsc_DebtInstrumentPercentageOfNetBookValueOfEligibleRentalEquipmentUsedInDeterminingBorrowingCapacity_0a6129b7-81d0-4cc5-9505-af6b46feddda_terseLabel_en-US" xlink:label="lab_wsc_DebtInstrumentPercentageOfNetBookValueOfEligibleRentalEquipmentUsedInDeterminingBorrowingCapacity" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Percentage of net book value of eligible rental equipment used in determining borrowing capacity</link:label>
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    <link:label id="lab_wsc_DebtInstrumentInterestRatePaymentPeriodDomain_6bf3873c-7dd7-45f6-9cc2-131bde0852bc_terseLabel_en-US" xlink:label="lab_wsc_DebtInstrumentInterestRatePaymentPeriodDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt Instrument, Interest Rate Payment Period [Domain]</link:label>
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    <link:label id="lab_us-gaap_CostOfGoodsSoldExcludingDepreciationDepletionAndAmortization_50678b59-bd81-49e5-a48f-3e5e6aacda0a_terseLabel_en-US" xlink:label="lab_us-gaap_CostOfGoodsSoldExcludingDepreciationDepletionAndAmortization" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cost of sales</link:label>
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    <link:label id="lab_wsc_ModularOtherNorthAmericaSegmentMember_33399369-fa48-4411-a04a-813aa267f914_terseLabel_en-US" xlink:label="lab_wsc_ModularOtherNorthAmericaSegmentMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Modular - Other North America</link:label>
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    <link:label id="lab_wsc_PublicStockOfferingMember_834f2ceb-bdcc-4ea9-9579-5cf95a87acaa_terseLabel_en-US" xlink:label="lab_wsc_PublicStockOfferingMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Equity Offering</link:label>
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    <link:label id="lab_wsc_StockholdersEquityPeriodIncreaseDecreaseBusinessCombination_f391e64c-ffb3-4683-b505-52c2830550b7_terseLabel_en-US" xlink:label="lab_wsc_StockholdersEquityPeriodIncreaseDecreaseBusinessCombination" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Acquisition of ModSpace and the effect of the related financing transactions</link:label>
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    <link:label id="lab_us-gaap_CommonStockSharesOutstanding_60b78c05-bbe9-4c47-8d69-628ed67f6204_terseLabel_en-US" xlink:label="lab_us-gaap_CommonStockSharesOutstanding" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Common stock outstanding (in shares)</link:label>
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    <link:label id="lab_wsc_RedemptionOptionAxis_a736814d-cf4e-4e2a-ac86-aab305704cb3_terseLabel_en-US" xlink:label="lab_wsc_RedemptionOptionAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Redemption Option [Axis]</link:label>
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    <link:label id="lab_us-gaap_BaseRateMember_2b57c5f5-99ec-41c5-b0f6-3bd6d60cb8c7_terseLabel_en-US" xlink:label="lab_us-gaap_BaseRateMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Base Rate</link:label>
    <link:label id="lab_us-gaap_BaseRateMember_label_en-US" xlink:label="lab_us-gaap_BaseRateMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Base Rate [Member]</link:label>
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    <link:label id="lab_wsc_TaxCutsAndJobsActReclassificationFromAOCIToRetainedEarningsTaxEffect_84910830-be5f-4071-b231-cc74c2b4cebf_terseLabel_en-US" xlink:label="lab_wsc_TaxCutsAndJobsActReclassificationFromAOCIToRetainedEarningsTaxEffect" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Adoption of ASU 2018-02</link:label>
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    <link:label id="lab_dei_EntityExTransitionPeriod_7e144ae7-1713-4cc5-bacf-95ebd3d0792c_terseLabel_en-US" xlink:label="lab_dei_EntityExTransitionPeriod" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Ex Transition Period</link:label>
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    <link:label id="lab_wsc_FinancingObligationMember_73054715-5bcb-453f-846f-6868007fa1ea_terseLabel_en-US" xlink:label="lab_wsc_FinancingObligationMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Sale Leaseback Transaction</link:label>
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    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward_0430ce80-040b-4c7f-9f39-26a55969b251_terseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Weighted-Average Exercise Price per Share ($)</link:label>
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    <link:label id="lab_wsc_InterestExpenseAdjustmentMember_742ab6d0-c1f5-45af-bc2c-02ac55ec7693_terseLabel_en-US" xlink:label="lab_wsc_InterestExpenseAdjustmentMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Interest expense</link:label>
    <link:label id="lab_wsc_InterestExpenseAdjustmentMember_label_en-US" xlink:label="lab_wsc_InterestExpenseAdjustmentMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">InterestExpenseAdjustmentMember</link:label>
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    <link:label id="lab_us-gaap_Goodwill_756ee373-484c-4e46-8f01-d821f4c4be4d_terseLabel_en-US" xlink:label="lab_us-gaap_Goodwill" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Goodwill</link:label>
    <link:label id="lab_us-gaap_Goodwill_b9799ade-30e4-4538-9201-05415b95d457_verboseLabel_en-US" xlink:label="lab_us-gaap_Goodwill" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Total goodwill</link:label>
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    <link:label id="lab_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax_036aac1c-3e00-40b5-b5cb-c7c58e32fa91_terseLabel_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Foreign currency translation adjustment, net of income tax (benefit) expense of $80, $698, $(161) and $1,316 for the three and nine months ended September 30, 2018 and 2017, respectively</link:label>
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    <link:label id="lab_wsc_NewUnitsMember_7310d083-6a73-45fc-82bb-0a80b5c723d4_terseLabel_en-US" xlink:label="lab_wsc_NewUnitsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">New Units</link:label>
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    <link:loc xlink:type="locator" xlink:label="loc_wsc_NewUnitsMember" xlink:href="wsc-20180930.xsd#wsc_NewUnitsMember"/>
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    <link:label id="lab_us-gaap_SecuredDebtMember_9d3583a9-b003-4e42-885f-1fccafbfcf7b_terseLabel_en-US" xlink:label="lab_us-gaap_SecuredDebtMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Margin Loan</link:label>
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    <link:label id="lab_us-gaap_EmployeeStockOptionMember_d8089130-9814-4397-8348-ac8c7b50e5cf_terseLabel_en-US" xlink:label="lab_us-gaap_EmployeeStockOptionMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Stock Option Awards</link:label>
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    <link:label id="lab_wsc_DuetoRelatedPartiesExcludingInterestPayableCurrent_8c6d565d-75a3-4927-b3ec-d10e68f43660_negatedLabel_en-US" xlink:label="lab_wsc_DuetoRelatedPartiesExcludingInterestPayableCurrent" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Amounts due to affiliates</link:label>
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    <link:label id="lab_us-gaap_SubsidiarySaleOfStockLineItems_f36242ec-8e09-4c4e-9e8c-b5b9c6161d68_terseLabel_en-US" xlink:label="lab_us-gaap_SubsidiarySaleOfStockLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Subsidiary, Sale of Stock [Line Items]</link:label>
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    <link:label id="lab_wsc_ProceedsfromSaleofEquipmentonLease_245f14bd-c704-47ec-bdb2-68ea945332a3_terseLabel_en-US" xlink:label="lab_wsc_ProceedsfromSaleofEquipmentonLease" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Proceeds from sale of rental equipment</link:label>
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    <link:label id="lab_us-gaap_LeaseAgreementsMember_54f2a03a-25ec-4123-b660-91f89e06d80b_terseLabel_en-US" xlink:label="lab_us-gaap_LeaseAgreementsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Favorable Lease Asset</link:label>
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    <link:label id="lab_us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity_2e56aeb6-d9dd-47ba-9856-770b05c1fb0c_terseLabel_en-US" xlink:label="lab_us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Available borrowing capacity</link:label>
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    <link:label id="lab_us-gaap_DebtInstrumentRedemptionPricePercentage_7ac8321d-2caa-4f5f-89d0-dd9043b0fd65_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentRedemptionPricePercentage" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Redemption Price</link:label>
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    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable" xlink:to="lab_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable" xlink:type="arc" order="1"/>
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    <link:label id="lab_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_e7b1e399-60f3-42b9-9078-9bfd3a1bc974_terseLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Operating Activities:</link:label>
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    <link:label id="lab_us-gaap_RelatedPartyTransactionDueFromToRelatedParty_07f105e5-d5eb-4b84-90fc-c8be7ffb3fb8_totalLabel_en-US" xlink:label="lab_us-gaap_RelatedPartyTransactionDueFromToRelatedParty" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Total related party liabilities, net</link:label>
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    <link:label id="lab_us-gaap_MajorPropertyClassDomain_4c614108-f8af-4b1f-9b63-c45e3cb6cc5a_terseLabel_en-US" xlink:label="lab_us-gaap_MajorPropertyClassDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Major Property Class [Domain]</link:label>
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    <link:label id="lab_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_label_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Increase (Decrease) in Stockholders' Equity [Roll Forward]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncreaseDecreaseInStockholdersEquityRollForward"/>
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    <link:label id="lab_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_39cbaf69-766c-4fd2-a2e5-1352cbaf9667_totalLabel_en-US" xlink:label="lab_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Total equity</link:label>
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    <link:label id="lab_us-gaap_MinorityInterest_a93e5254-3dd8-4f84-a007-9ceb999d49d3_terseLabel_en-US" xlink:label="lab_us-gaap_MinorityInterest" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Non-controlling interest</link:label>
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    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MinorityInterest" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_MinorityInterest"/>
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    <link:label id="lab_us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock_84eea9f9-6c2d-4b08-8f77-37b9b165e210_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Stock Option Awards</link:label>
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    <link:label id="lab_wsc_RentalUnitsBusinessMember_c01a948c-bb47-4efe-920b-61d3f6a07966_terseLabel_en-US" xlink:label="lab_wsc_RentalUnitsBusinessMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Rental units</link:label>
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    <link:label id="lab_us-gaap_LineOfCreditMember_af177f32-27c3-49eb-9da7-2ae0859a3db0_terseLabel_en-US" xlink:label="lab_us-gaap_LineOfCreditMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Line of Credit</link:label>
    <link:label id="lab_us-gaap_LineOfCreditMember_label_en-US" xlink:label="lab_us-gaap_LineOfCreditMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Line of Credit [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditMember" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LineOfCreditMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LineOfCreditMember" xlink:to="lab_us-gaap_LineOfCreditMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DebtDisclosureAbstract_label_en-US" xlink:label="lab_us-gaap_DebtDisclosureAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt Disclosure [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtDisclosureAbstract" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DebtDisclosureAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtDisclosureAbstract" xlink:to="lab_us-gaap_DebtDisclosureAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_InterestPaid_51c5a40e-525a-475d-8e65-60181123e3c9_terseLabel_en-US" xlink:label="lab_us-gaap_InterestPaid" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Interest paid</link:label>
    <link:label id="lab_us-gaap_InterestPaid_label_en-US" xlink:label="lab_us-gaap_InterestPaid" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Interest Paid, Including Capitalized Interest, Operating and Investing Activities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestPaid" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_InterestPaid"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InterestPaid" xlink:to="lab_us-gaap_InterestPaid" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_StatementBusinessSegmentsAxis_f1048a46-ab50-49c4-bc4a-75fd232030e1_terseLabel_en-US" xlink:label="lab_us-gaap_StatementBusinessSegmentsAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Segments [Axis]</link:label>
    <link:label id="lab_us-gaap_StatementBusinessSegmentsAxis_label_en-US" xlink:label="lab_us-gaap_StatementBusinessSegmentsAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Segments [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementBusinessSegmentsAxis" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StatementBusinessSegmentsAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis" xlink:to="lab_us-gaap_StatementBusinessSegmentsAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax_3e25a91a-3d3e-49ab-8537-8f8d63b0fe87_terseLabel_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Foreign currency translation adjustment, income tax expense (benefit)</link:label>
    <link:label id="lab_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax_label_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Tax</link:label>
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    <link:label id="lab_wsc_DebtInstrumentMakeWholePremiumBasisSpreadOnVariableRate_61566161-958a-4236-9d02-3eb00d85780c_terseLabel_en-US" xlink:label="lab_wsc_DebtInstrumentMakeWholePremiumBasisSpreadOnVariableRate" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Make whole premium basis spread on variable rate</link:label>
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    <link:label id="lab_us-gaap_CarryingReportedAmountFairValueDisclosureMember_e8091a87-4ef9-47c3-97dd-554be8106395_terseLabel_en-US" xlink:label="lab_us-gaap_CarryingReportedAmountFairValueDisclosureMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Carrying Amount</link:label>
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    <link:label id="lab_us-gaap_PaymentsToAcquireBusinessesGross_0712935b-cd8d-4902-90d2-a5ba29395ec0_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_PaymentsToAcquireBusinessesGross" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Acquisition of a business</link:label>
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    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NoncontrollingInterestMember" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NoncontrollingInterestMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NoncontrollingInterestMember" xlink:to="lab_us-gaap_NoncontrollingInterestMember" xlink:type="arc" order="1"/>
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    <link:label id="lab_us-gaap_FairValueByBalanceSheetGroupingTable_37502cae-90cd-400f-ae09-23a4f3fb9cac_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueByBalanceSheetGroupingTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Fair Value, by Balance Sheet Grouping [Table]</link:label>
    <link:label id="lab_us-gaap_FairValueByBalanceSheetGroupingTable_label_en-US" xlink:label="lab_us-gaap_FairValueByBalanceSheetGroupingTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Fair Value, by Balance Sheet Grouping [Table]</link:label>
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    <link:label id="lab_wsc_RemoteAccommodationsBusinessMember_9686d326-9700-4468-bc9b-3ad1221dae1e_terseLabel_en-US" xlink:label="lab_wsc_RemoteAccommodationsBusinessMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Remote accommodations</link:label>
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    <link:label id="lab_us-gaap_GainLossOnDispositionOfAssets1_32ac6a38-ea5d-4535-b8ab-d9186983a82e_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_GainLossOnDispositionOfAssets1" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Gain on sale of rental equipment and other property, plant and equipment</link:label>
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    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_701575da-7498-40ed-9e0e-6e655fc82ea6_verboseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Weighted-Average Grant Date Fair Value</link:label>
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    <link:label id="lab_us-gaap_IncreaseDecreaseInAccountsReceivable_3fbf029e-0659-4167-97ca-05d5f12b204d_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInAccountsReceivable" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Trade receivables</link:label>
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    <link:label id="lab_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_b9b46de0-697d-4437-b7e3-e3fc543b4dd4_terseLabel_en-US" xlink:label="lab_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Accumulated Other Comprehensive Income (Loss) [Line Items]</link:label>
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    <link:label id="lab_us-gaap_FairValueInputsLevel3Member_2fbda3ca-f76e-402e-b9f3-72caa6e20e4a_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueInputsLevel3Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Level 3</link:label>
    <link:label id="lab_us-gaap_FairValueInputsLevel3Member_label_en-US" xlink:label="lab_us-gaap_FairValueInputsLevel3Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Fair Value, Inputs, Level 3 [Member]</link:label>
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    <link:label id="lab_wsc_LineOfCreditFacilityMaximumBorrowingCapacityAfterAccordionFeature_16e7ae4f-4bb0-4067-922c-4dbf12922875_terseLabel_en-US" xlink:label="lab_wsc_LineOfCreditFacilityMaximumBorrowingCapacityAfterAccordionFeature" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Maximum aggregate availability, after accordion feature</link:label>
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    <link:label id="lab_us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense_00c672fd-7519-4193-a9a1-cdc4b4c81c90_terseLabel_en-US" xlink:label="lab_us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Compensation expense for awards, associated tax benefits</link:label>
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    <link:label id="lab_us-gaap_AccountsReceivableRelatedPartiesCurrent_f48391a1-ffbc-45cf-af19-9021e3930d53_terseLabel_en-US" xlink:label="lab_us-gaap_AccountsReceivableRelatedPartiesCurrent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Receivables due from affiliates</link:label>
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    <link:label id="lab_us-gaap_PaymentsForRestructuring_560dc6ad-eee2-414d-9976-a445ec3ad6a6_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_PaymentsForRestructuring" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cash payments during the period</link:label>
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    <link:label id="lab_dei_EntityFilerCategory_4c018625-9152-460a-b002-ffebe3b463c9_terseLabel_en-US" xlink:label="lab_dei_EntityFilerCategory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Filer Category</link:label>
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    <link:label id="lab_us-gaap_DerivativeFixedInterestRate_1c0123a9-0939-48a0-9c6c-87a7e607cb0d_terseLabel_en-US" xlink:label="lab_us-gaap_DerivativeFixedInterestRate" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Fixed interest rate</link:label>
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    <link:label id="lab_us-gaap_CostOfGoodsAndServicesSoldDepreciation_18c18cb9-a9dc-48a2-9e4d-a69adf491304_terseLabel_en-US" xlink:label="lab_us-gaap_CostOfGoodsAndServicesSoldDepreciation" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Depreciation of rental equipment</link:label>
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    <link:label id="lab_us-gaap_BusinessCombinationIntegrationRelatedCosts_3c3277a2-b4a2-473b-b5b2-965f2be18759_verboseLabel_en-US" xlink:label="lab_us-gaap_BusinessCombinationIntegrationRelatedCosts" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Integration fees</link:label>
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    <link:label id="lab_us-gaap_SubsidiarySaleOfStockAxis_b33e0391-65e2-4896-a31e-3766f21f52f7_terseLabel_en-US" xlink:label="lab_us-gaap_SubsidiarySaleOfStockAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Sale of Stock [Axis]</link:label>
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    <link:label id="lab_us-gaap_ProceedsFromRelatedPartyDebt_83971aa9-42b7-45c2-8796-80461e7f3de1_terseLabel_en-US" xlink:label="lab_us-gaap_ProceedsFromRelatedPartyDebt" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Receipts on borrowings from notes due to affiliates</link:label>
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    <link:label id="lab_wsc_PropertySubjecttoorAvailableforOperatingLeaseCapitalExpenditures_aba3084e-ba94-4d19-a2b5-c1d0cc119f1a_terseLabel_en-US" xlink:label="lab_wsc_PropertySubjecttoorAvailableforOperatingLeaseCapitalExpenditures" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Capital expenditures for rental fleet</link:label>
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    <link:label id="lab_us-gaap_CostOfGoodsAndServicesSoldAbstract_9ceddc0f-9801-4bb7-8c5d-7227d3154fd9_terseLabel_en-US" xlink:label="lab_us-gaap_CostOfGoodsAndServicesSoldAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Costs:</link:label>
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    <link:label id="lab_wsc_USAssetBasedLiabilityFacilityDue2022Member_cfe10704-c6db-41e5-9b79-a02e69729240_terseLabel_en-US" xlink:label="lab_wsc_USAssetBasedLiabilityFacilityDue2022Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">US ABL Facility</link:label>
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    <link:label id="lab_us-gaap_LongTermDebtAndCapitalLeaseObligations_4b87bae4-3611-49c7-a169-61340a873902_verboseLabel_en-US" xlink:label="lab_us-gaap_LongTermDebtAndCapitalLeaseObligations" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Long-term debt</link:label>
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    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LongTermDebtAndCapitalLeaseObligations" xlink:to="lab_us-gaap_LongTermDebtAndCapitalLeaseObligations" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_CapitalLeaseObligationsMember_10620e99-e03b-4f6a-a4a4-b6c9ab1f4510_verboseLabel_en-US" xlink:label="lab_us-gaap_CapitalLeaseObligationsMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Capital Lease Obligations</link:label>
    <link:label id="lab_us-gaap_CapitalLeaseObligationsMember_label_en-US" xlink:label="lab_us-gaap_CapitalLeaseObligationsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Capital Lease Obligations [Member]</link:label>
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    <link:label id="lab_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_876162fc-36f0-4936-9ba8-2cffe3301ee7_terseLabel_en-US" xlink:label="lab_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Disposal Group Name [Domain]</link:label>
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    <link:label id="lab_wsc_DocumentandEntityInformationAbstract_label_en-US" xlink:label="lab_wsc_DocumentandEntityInformationAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Document and Entity Information [Abstract]</link:label>
    <link:label id="lab_wsc_DocumentandEntityInformationAbstract_documentation_en-US" xlink:label="lab_wsc_DocumentandEntityInformationAbstract" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Document and Entity Information [Abstract]</link:label>
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    <link:label id="lab_us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest_c6f5deb8-c3b4-4cee-8ba6-c6f8beeecc6f_totalLabel_en-US" xlink:label="lab_us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Loss from continuing operations</link:label>
    <link:label id="lab_us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest_label_en-US" xlink:label="lab_us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Income (Loss) from Continuing Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest</link:label>
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    <link:label id="lab_us-gaap_RepaymentsOfLongTermCapitalLeaseObligations_720e18e2-a43f-4a29-856a-bf2650668bd0_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_RepaymentsOfLongTermCapitalLeaseObligations" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Principal payments on capital lease obligations</link:label>
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    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RepaymentsOfLongTermCapitalLeaseObligations" xlink:to="lab_us-gaap_RepaymentsOfLongTermCapitalLeaseObligations" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_EquityComponentDomain_dbfee76a-f5ca-49a3-acf7-5b461050947f_terseLabel_en-US" xlink:label="lab_us-gaap_EquityComponentDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Equity Component [Domain]</link:label>
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    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice_bd8272ec-04a0-4be8-822d-6ff29189ef38_terseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Fully vested and exercisable options, end of year (in USD per share)</link:label>
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    <link:label id="lab_us-gaap_RelatedPartyTransactionsAbstract_label_en-US" xlink:label="lab_us-gaap_RelatedPartyTransactionsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Related Party Transactions [Abstract]</link:label>
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    <link:label id="lab_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_38a0e0ac-f811-4509-acc7-7069eadb80c3_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueMeasurementsFairValueHierarchyDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Fair Value Hierarchy and NAV [Domain]</link:label>
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    <link:label id="lab_wsc_ClassOfWarrantOrRightFairValueOfEachWarrantOrRight_aaf149a4-22ee-4ac6-95e0-3e226d27e9a2_terseLabel_en-US" xlink:label="lab_wsc_ClassOfWarrantOrRightFairValueOfEachWarrantOrRight" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Fair market value of warrant (in USD per share)</link:label>
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    <link:label id="lab_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent_ef6b0539-7b50-41aa-b4d9-8623de323708_terseLabel_en-US" xlink:label="lab_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Trade receivables, net of allowance</link:label>
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    <link:label id="lab_us-gaap_BusinessCombinationAcquiredReceivablesGrossContractualAmount_a6eeae78-dc41-446b-aefb-57451ece57b6_terseLabel_en-US" xlink:label="lab_us-gaap_BusinessCombinationAcquiredReceivablesGrossContractualAmount" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Gross contractual amounts of accounts receivables</link:label>
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    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_225af1a5-e34f-4b99-bf53-ccfc453273b1_verboseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Number of options granted (in shares)</link:label>
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    <link:label id="lab_wsc_CostofServicesExcludingDepreciationDepletionandAmortizationAbstract_603668b9-e431-4315-8668-0683d896f6a9_terseLabel_en-US" xlink:label="lab_wsc_CostofServicesExcludingDepreciationDepletionandAmortizationAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cost of leasing and services:</link:label>
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    <link:label id="lab_us-gaap_DirectCostsOfLeasedAndRentedPropertyOrEquipment_4e8d8406-cfd9-421a-bdd7-747f80c145cb_verboseLabel_en-US" xlink:label="lab_us-gaap_DirectCostsOfLeasedAndRentedPropertyOrEquipment" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Modular leasing</link:label>
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    <link:label id="lab_us-gaap_NumberOfOperatingSegments_4a7e90b0-22ff-4e40-8f21-5ba1aa127dc2_terseLabel_en-US" xlink:label="lab_us-gaap_NumberOfOperatingSegments" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Number of operating segments</link:label>
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    <link:label id="lab_us-gaap_IncomeTaxExpenseBenefit_6f0dd6ff-1ebd-459e-b30b-9834852829f1_terseLabel_en-US" xlink:label="lab_us-gaap_IncomeTaxExpenseBenefit" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Income tax benefit</link:label>
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    <link:label id="lab_us-gaap_FairValueByFairValueHierarchyLevelAxis_7225e2d9-8965-421c-99f4-d54312432c13_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueByFairValueHierarchyLevelAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Fair Value Hierarchy and NAV [Axis]</link:label>
    <link:label id="lab_us-gaap_FairValueByFairValueHierarchyLevelAxis_label_en-US" xlink:label="lab_us-gaap_FairValueByFairValueHierarchyLevelAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Fair Value Hierarchy and NAV [Axis]</link:label>
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    <link:label id="lab_us-gaap_AssetsCurrent_7957e0e0-62c9-4b67-bb87-d708fc4840df_totalLabel_en-US" xlink:label="lab_us-gaap_AssetsCurrent" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Total current assets</link:label>
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    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AssetsCurrent" xlink:to="lab_us-gaap_AssetsCurrent" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_LiabilitiesCurrent_c63e627b-f0cb-4150-8c61-7a9aa0bdd6b8_totalLabel_en-US" xlink:label="lab_us-gaap_LiabilitiesCurrent" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Total current liabilities</link:label>
    <link:label id="lab_us-gaap_LiabilitiesCurrent_label_en-US" xlink:label="lab_us-gaap_LiabilitiesCurrent" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Liabilities, Current</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesCurrent" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LiabilitiesCurrent"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LiabilitiesCurrent" xlink:to="lab_us-gaap_LiabilitiesCurrent" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_PropertySubjectToOrAvailableForOperatingLeaseAccumulatedDepreciation_f69c4ed7-f7f1-4a0e-ad3f-cc462e4102f9_negatedLabel_en-US" xlink:label="lab_us-gaap_PropertySubjectToOrAvailableForOperatingLeaseAccumulatedDepreciation" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Less: accumulated depreciation</link:label>
    <link:label id="lab_us-gaap_PropertySubjectToOrAvailableForOperatingLeaseAccumulatedDepreciation_label_en-US" xlink:label="lab_us-gaap_PropertySubjectToOrAvailableForOperatingLeaseAccumulatedDepreciation" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Property Subject to or Available for Operating Lease, Accumulated Depreciation</link:label>
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    <link:label id="lab_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets_add642af-8bc3-4269-933f-fcd7f47030fe_totalLabel_en-US" xlink:label="lab_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Total identifiable assests acquired</link:label>
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    <link:label id="lab_wsc_WilliamsScotsmanHoldingsCorpMember_6d5e6907-67d8-4bc1-8427-83225f256b09_terseLabel_en-US" xlink:label="lab_wsc_WilliamsScotsmanHoldingsCorpMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Williams Scotsman Holdings Corp.</link:label>
    <link:label id="lab_wsc_WilliamsScotsmanHoldingsCorpMember_label_en-US" xlink:label="lab_wsc_WilliamsScotsmanHoldingsCorpMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Williams Scotsman Holdings Corp. [Member]</link:label>
    <link:label id="lab_wsc_WilliamsScotsmanHoldingsCorpMember_documentation_en-US" xlink:label="lab_wsc_WilliamsScotsmanHoldingsCorpMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Williams Scotsman Holdings Corp.</link:label>
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    <link:label id="lab_us-gaap_DebtInstrumentFaceAmount_49d3c50a-f1d3-460a-ac1f-7559e33ac1a0_verboseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentFaceAmount" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt issued</link:label>
    <link:label id="lab_us-gaap_DebtInstrumentFaceAmount_1c51a739-7c09-47d5-80ab-f0e5683f25c3_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentFaceAmount" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt, face amount</link:label>
    <link:label id="lab_us-gaap_DebtInstrumentFaceAmount_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentFaceAmount" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt Instrument, Face Amount</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentFaceAmount" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DebtInstrumentFaceAmount"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtInstrumentFaceAmount" xlink:to="lab_us-gaap_DebtInstrumentFaceAmount" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_RestrictedStockUnitsRSUMember_fd1b16e4-4d2e-4520-95c3-65ebd4e0944c_terseLabel_en-US" xlink:label="lab_us-gaap_RestrictedStockUnitsRSUMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Restricted Stock Units</link:label>
    <link:label id="lab_us-gaap_RestrictedStockUnitsRSUMember_label_en-US" xlink:label="lab_us-gaap_RestrictedStockUnitsRSUMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Restricted Stock Units (RSUs) [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedStockUnitsRSUMember" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RestrictedStockUnitsRSUMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RestrictedStockUnitsRSUMember" xlink:to="lab_us-gaap_RestrictedStockUnitsRSUMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_3da63ffa-c48b-494c-b48c-6066530a9c8d_terseLabel_en-US" xlink:label="lab_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Related Party [Axis]</link:label>
    <link:label id="lab_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_label_en-US" xlink:label="lab_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Related Party [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RelatedPartyTransactionsByRelatedPartyAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:to="lab_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_GoodwillForeignCurrencyTranslationGainLoss_c50e0aac-dd51-4bc1-a333-bdce09695c95_terseLabel_en-US" xlink:label="lab_us-gaap_GoodwillForeignCurrencyTranslationGainLoss" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Effects of movements in foreign exchange rates</link:label>
    <link:label id="lab_us-gaap_GoodwillForeignCurrencyTranslationGainLoss_label_en-US" xlink:label="lab_us-gaap_GoodwillForeignCurrencyTranslationGainLoss" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Goodwill, Foreign Currency Translation Gain (Loss)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GoodwillForeignCurrencyTranslationGainLoss" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_GoodwillForeignCurrencyTranslationGainLoss"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_GoodwillForeignCurrencyTranslationGainLoss" xlink:to="lab_us-gaap_GoodwillForeignCurrencyTranslationGainLoss" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_LiabilitiesAndStockholdersEquity_81429fd9-dc1e-47e5-ba4d-1ae95c0bf42a_totalLabel_en-US" xlink:label="lab_us-gaap_LiabilitiesAndStockholdersEquity" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Total liabilities and equity</link:label>
    <link:label id="lab_us-gaap_LiabilitiesAndStockholdersEquity_label_en-US" xlink:label="lab_us-gaap_LiabilitiesAndStockholdersEquity" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Liabilities and Equity</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquity" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquity"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity" xlink:to="lab_us-gaap_LiabilitiesAndStockholdersEquity" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_BusinessAcquisitionsProFormaIncomeLossFromContinuingOperationsBeforeChangesInAccountingAndExtraordinaryItemsNetOfTax_3dcc20ce-bd87-4380-9cbe-02e97511bdd8_totalLabel_en-US" xlink:label="lab_us-gaap_BusinessAcquisitionsProFormaIncomeLossFromContinuingOperationsBeforeChangesInAccountingAndExtraordinaryItemsNetOfTax" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Pro-forma loss from continuing operations</link:label>
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    <link:label id="lab_srt_RepurchaseAgreementCounterpartyNameDomain_f93e676f-4b86-44ae-9aab-578ee80e39b9_terseLabel_en-US" xlink:label="lab_srt_RepurchaseAgreementCounterpartyNameDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Counterparty Name [Domain]</link:label>
    <link:label id="lab_srt_RepurchaseAgreementCounterpartyNameDomain_label_en-US" xlink:label="lab_srt_RepurchaseAgreementCounterpartyNameDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Counterparty Name [Domain]</link:label>
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    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_RepurchaseAgreementCounterpartyNameDomain" xlink:to="lab_srt_RepurchaseAgreementCounterpartyNameDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DisposalGroupIncludingDiscontinuedOperationRentalIncome_534a59c9-bba1-4189-ab7a-8ad087075d90_terseLabel_en-US" xlink:label="lab_us-gaap_DisposalGroupIncludingDiscontinuedOperationRentalIncome" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Lease revenue</link:label>
    <link:label id="lab_us-gaap_DisposalGroupIncludingDiscontinuedOperationRentalIncome_label_en-US" xlink:label="lab_us-gaap_DisposalGroupIncludingDiscontinuedOperationRentalIncome" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Disposal Group, Including Discontinued Operation, Rental Income</link:label>
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    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationRentalIncome" xlink:to="lab_us-gaap_DisposalGroupIncludingDiscontinuedOperationRentalIncome" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_EarningsPerShareBasicAndDilutedAbstract_f99238fb-718c-4df1-97ad-74aefc6c3247_terseLabel_en-US" xlink:label="lab_us-gaap_EarningsPerShareBasicAndDilutedAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Net loss per share attributable to WSC - basic and diluted</link:label>
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    <link:label id="lab_us-gaap_OperatingSegmentsMember_64ae6e49-07cf-4c93-8481-d621a6523956_terseLabel_en-US" xlink:label="lab_us-gaap_OperatingSegmentsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Operating Segments</link:label>
    <link:label id="lab_us-gaap_OperatingSegmentsMember_label_en-US" xlink:label="lab_us-gaap_OperatingSegmentsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Operating Segments [Member]</link:label>
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    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OperatingSegmentsMember" xlink:to="lab_us-gaap_OperatingSegmentsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_AssetsNoncurrent_fd114b85-853c-4418-ae42-d036213b56b4_totalLabel_en-US" xlink:label="lab_us-gaap_AssetsNoncurrent" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Total long-term assets</link:label>
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    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AssetsNoncurrent" xlink:to="lab_us-gaap_AssetsNoncurrent" xlink:type="arc" order="1"/>
    <link:label id="lab_wsc_WarrantsNotIssuedInConnectionWithAcquisitionOfModularSpaceHoldingsMember_f686f891-54d1-4e87-a995-f1e61c59a03e_terseLabel_en-US" xlink:label="lab_wsc_WarrantsNotIssuedInConnectionWithAcquisitionOfModularSpaceHoldingsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Warrants, Not Issued in Connection with Acquisition of Modular Space Holdings</link:label>
    <link:label id="lab_wsc_WarrantsNotIssuedInConnectionWithAcquisitionOfModularSpaceHoldingsMember_label_en-US" xlink:label="lab_wsc_WarrantsNotIssuedInConnectionWithAcquisitionOfModularSpaceHoldingsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Warrants, Not Issued in Connection with Acquisition of Modular Space Holdings [Member]</link:label>
    <link:label id="lab_wsc_WarrantsNotIssuedInConnectionWithAcquisitionOfModularSpaceHoldingsMember_documentation_en-US" xlink:label="lab_wsc_WarrantsNotIssuedInConnectionWithAcquisitionOfModularSpaceHoldingsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Warrants, Not Issued in Connection with Acquisition of Modular Space Holdings</link:label>
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    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_wsc_WarrantsNotIssuedInConnectionWithAcquisitionOfModularSpaceHoldingsMember" xlink:to="lab_wsc_WarrantsNotIssuedInConnectionWithAcquisitionOfModularSpaceHoldingsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_wsc_ActonMobileHoldingsLLCMember_124b5975-f746-49e8-80f2-86cd3a2eb697_verboseLabel_en-US" xlink:label="lab_wsc_ActonMobileHoldingsLLCMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Acton Mobile Holdings LLC</link:label>
    <link:label id="lab_wsc_ActonMobileHoldingsLLCMember_label_en-US" xlink:label="lab_wsc_ActonMobileHoldingsLLCMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">ActonMobileHoldingsLLCMember</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_wsc_ActonMobileHoldingsLLCMember" xlink:href="wsc-20180930.xsd#wsc_ActonMobileHoldingsLLCMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_wsc_ActonMobileHoldingsLLCMember" xlink:to="lab_wsc_ActonMobileHoldingsLLCMember" xlink:type="arc" order="1"/>
    <link:label id="lab_wsc_DisposalGroupIncludingDiscontinuedOperationCostofSalesDepreciation_7967a56b-7216-4793-b699-4aeff0dfa81a_terseLabel_en-US" xlink:label="lab_wsc_DisposalGroupIncludingDiscontinuedOperationCostofSalesDepreciation" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Depreciation of rental equipment</link:label>
    <link:label id="lab_wsc_DisposalGroupIncludingDiscontinuedOperationCostofSalesDepreciation_label_en-US" xlink:label="lab_wsc_DisposalGroupIncludingDiscontinuedOperationCostofSalesDepreciation" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">DisposalGroupIncludingDiscontinuedOperationCostofSalesDepreciation</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_wsc_DisposalGroupIncludingDiscontinuedOperationCostofSalesDepreciation" xlink:href="wsc-20180930.xsd#wsc_DisposalGroupIncludingDiscontinuedOperationCostofSalesDepreciation"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_wsc_DisposalGroupIncludingDiscontinuedOperationCostofSalesDepreciation" xlink:to="lab_wsc_DisposalGroupIncludingDiscontinuedOperationCostofSalesDepreciation" xlink:type="arc" order="1"/>
    <link:label id="lab_wsc_CommonStockNumberOfSharesRegistered_5ed612e6-01d4-498f-b6aa-9b004653b3ae_terseLabel_en-US" xlink:label="lab_wsc_CommonStockNumberOfSharesRegistered" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Shares registered (in shares)</link:label>
    <link:label id="lab_wsc_CommonStockNumberOfSharesRegistered_label_en-US" xlink:label="lab_wsc_CommonStockNumberOfSharesRegistered" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Common Stock, Number of Shares Registered</link:label>
    <link:label id="lab_wsc_CommonStockNumberOfSharesRegistered_documentation_en-US" xlink:label="lab_wsc_CommonStockNumberOfSharesRegistered" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Common Stock, Number of Shares Registered</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_wsc_CommonStockNumberOfSharesRegistered" xlink:href="wsc-20180930.xsd#wsc_CommonStockNumberOfSharesRegistered"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_wsc_CommonStockNumberOfSharesRegistered" xlink:to="lab_wsc_CommonStockNumberOfSharesRegistered" xlink:type="arc" order="1"/>
    <link:label id="lab_wsc_RedemptionOptionDomain_86fa2964-1a32-47ff-a67a-f6a52361243a_terseLabel_en-US" xlink:label="lab_wsc_RedemptionOptionDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Redemption Option [Domain]</link:label>
    <link:label id="lab_wsc_RedemptionOptionDomain_label_en-US" xlink:label="lab_wsc_RedemptionOptionDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Redemption Option [Domain]</link:label>
    <link:label id="lab_wsc_RedemptionOptionDomain_documentation_en-US" xlink:label="lab_wsc_RedemptionOptionDomain" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">[Domain] for Redemption Option [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_wsc_RedemptionOptionDomain" xlink:href="wsc-20180930.xsd#wsc_RedemptionOptionDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_wsc_RedemptionOptionDomain" xlink:to="lab_wsc_RedemptionOptionDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_wsc_DisposalGroupIncludingDiscontinuedOperationCostofServices_b39e9103-2d79-4d1e-bb3f-ec10967ba883_terseLabel_en-US" xlink:label="lab_wsc_DisposalGroupIncludingDiscontinuedOperationCostofServices" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cost of services</link:label>
    <link:label id="lab_wsc_DisposalGroupIncludingDiscontinuedOperationCostofServices_label_en-US" xlink:label="lab_wsc_DisposalGroupIncludingDiscontinuedOperationCostofServices" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">DisposalGroupIncludingDiscontinuedOperationCostofServices</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_wsc_DisposalGroupIncludingDiscontinuedOperationCostofServices" xlink:href="wsc-20180930.xsd#wsc_DisposalGroupIncludingDiscontinuedOperationCostofServices"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_wsc_DisposalGroupIncludingDiscontinuedOperationCostofServices" xlink:to="lab_wsc_DisposalGroupIncludingDiscontinuedOperationCostofServices" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DebtInstrumentRedemptionTableTextBlock_b4808386-7656-4d5f-b25d-b0511c5d1365_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentRedemptionTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt Redemption</link:label>
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    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtInstrumentRedemptionTableTextBlock" xlink:to="lab_us-gaap_DebtInstrumentRedemptionTableTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_677e0268-e73b-4f17-b034-bc9daee22903_terseLabel_en-US" xlink:label="lab_us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Warrants exercise price (in USD per share)</link:label>
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    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1" xlink:to="lab_us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_CommonStockSharesIssued_f99650e9-34b5-4156-b379-c7dba6f51f9e_terseLabel_en-US" xlink:label="lab_us-gaap_CommonStockSharesIssued" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Common stock issued (in shares)</link:label>
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    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CommonStockSharesIssued" xlink:to="lab_us-gaap_CommonStockSharesIssued" xlink:type="arc" order="1"/>
    <link:label id="lab_wsc_DisposalGroupIncludingDiscontinuedOperationRestructuringCosts_36921a3a-2fca-46a2-821d-dbfc588125a2_terseLabel_en-US" xlink:label="lab_wsc_DisposalGroupIncludingDiscontinuedOperationRestructuringCosts" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Restructuring costs</link:label>
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    <link:loc xlink:type="locator" xlink:label="loc_wsc_DisposalGroupIncludingDiscontinuedOperationRestructuringCosts" xlink:href="wsc-20180930.xsd#wsc_DisposalGroupIncludingDiscontinuedOperationRestructuringCosts"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_wsc_DisposalGroupIncludingDiscontinuedOperationRestructuringCosts" xlink:to="lab_wsc_DisposalGroupIncludingDiscontinuedOperationRestructuringCosts" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ReconciliationOfAssetsFromSegmentToConsolidatedTextBlock_4b37acc7-e208-45ce-9846-46bd2b6f88ba_terseLabel_en-US" xlink:label="lab_us-gaap_ReconciliationOfAssetsFromSegmentToConsolidatedTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Reconciliation of Assets from Segment to Consolidated</link:label>
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    <link:label id="lab_wsc_BusinessCombinationProvisionalInformationIntialAccountingIncompleteAdjustmentReceivables_f335333a-f319-488e-a660-6407ff14e2ce_terseLabel_en-US" xlink:label="lab_wsc_BusinessCombinationProvisionalInformationIntialAccountingIncompleteAdjustmentReceivables" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Receivables</link:label>
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    <link:label id="lab_us-gaap_DiscontinuedOperationTaxEffectOfDiscontinuedOperation_19dc7d02-d2c6-4809-9550-a30099178eb9_terseLabel_en-US" xlink:label="lab_us-gaap_DiscontinuedOperationTaxEffectOfDiscontinuedOperation" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Income tax expense</link:label>
    <link:label id="lab_us-gaap_DiscontinuedOperationTaxEffectOfDiscontinuedOperation_label_en-US" xlink:label="lab_us-gaap_DiscontinuedOperationTaxEffectOfDiscontinuedOperation" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Discontinued Operation, Tax Effect of Discontinued Operation</link:label>
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    <link:label id="lab_srt_CounterpartyNameAxis_10d1ba0f-bb6b-4ec6-8450-20fac95fbced_terseLabel_en-US" xlink:label="lab_srt_CounterpartyNameAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Counterparty Name [Axis]</link:label>
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    <link:label id="lab_us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax_1375b81c-8a64-46d1-9422-e806edcb8c72_terseLabel_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Total other comprehensive loss</link:label>
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    <link:label id="lab_wsc_CommonStockNumberOfSharesRegisteredSubjectToTransfer_31344b23-bca3-41f7-b6a9-495d2ac67778_terseLabel_en-US" xlink:label="lab_wsc_CommonStockNumberOfSharesRegisteredSubjectToTransfer" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Shares registed, subject to transfer (in shares)</link:label>
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    <link:label id="lab_srt_ProductOrServiceAxis_d403157d-2545-4a4a-b911-209e9185fd15_terseLabel_en-US" xlink:label="lab_srt_ProductOrServiceAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Product and Service [Axis]</link:label>
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    <link:label id="lab_us-gaap_LettersOfCreditOutstandingAmount_4c6051ae-d7bc-4d89-aa59-4c49d5be286d_terseLabel_en-US" xlink:label="lab_us-gaap_LettersOfCreditOutstandingAmount" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Letters of credit amount outstanding</link:label>
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    <link:label id="lab_wsc_LongTermDebtAndCapitalLeaseObligationsCurrentAndNonCurrentMember_32a27822-48bb-4986-a9a0-78a21e1ee2af_terseLabel_en-US" xlink:label="lab_wsc_LongTermDebtAndCapitalLeaseObligationsCurrentAndNonCurrentMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Long-term Debt</link:label>
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    <link:label id="lab_us-gaap_GoodwillPurchaseAccountingAdjustments_c9bd4fd8-bf56-4f42-bc05-42bbda7d1435_terseLabel_en-US" xlink:label="lab_us-gaap_GoodwillPurchaseAccountingAdjustments" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Changes to preliminary purchase price allocations</link:label>
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    <link:label id="lab_us-gaap_IncomeTaxDisclosureTextBlock_3dcdc0df-1423-4085-8487-230fd28449fa_terseLabel_en-US" xlink:label="lab_us-gaap_IncomeTaxDisclosureTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Income Taxes</link:label>
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    <link:label id="lab_srt_OwnershipDomain_a8abb51b-87eb-4ed8-a180-2e50169a405f_terseLabel_en-US" xlink:label="lab_srt_OwnershipDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Ownership [Domain]</link:label>
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