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<!-- Created: Fri Apr 04 11:58:35 UTC 2025 -->
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cube_EquityAwardsAdjustmentsChangeInFairValueAsOfVestingDateOfPriorYearAwardsVestedDuringCurrentYearMember_lbl0" xml:lang="en-US">This member presents the equity awards adjustments on the change in fair value (as of vesting date) of prior year awards vested during current year.</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cube_EquityAwardsAdjustmentsChangeInFairValueAsOfVestingDateOfVestedAwardsDuringCurrentYearMember_lbl0" xml:lang="en-US">This member presents the equity awards adjustments on the change in fair value (as of vesting date) of awards vested during current year.</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cube_EquityAwardsAdjustmentsChangeInFairValueAsOfYearEndOfOutstandingAndUnvestedAwardsGrantedInPriorYearsMember_lbl0" xml:lang="en-US">This member presents the equity awards adjustments on the change in fair value from the end of the prior fiscal year of any awards granted in prior years that are outstanding and unvested as of the end of the applicable year.</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cube_EquityAwardsAdjustmentsChangeInFairValueOfUnvestedAwardsGrantedInPriorYearsMember_lbl0" xml:lang="en-US">This member presents the equity awards adjustments on the change in fair value from the end of the prior fiscal year of any awards granted in prior years that are unvested as of the end of the applicable year.</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cube_EquityAwardsAdjustmentsDividendsOrOtherEarningsPaidOnEquityAwardsNotOtherwiseReflectedInFairValueMember_lbl" xml:lang="en-US">Dividends Or Other Earnings Paid On Equity Awards Not Otherwise Reflected In Fair Value [Member]</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cube_EquityAwardsAdjustmentsDividendsOrOtherEarningsPaidOnEquityAwardsNotOtherwiseReflectedInFairValueMember_lbl0" xml:lang="en-US">This member presents the equity awards adjustments on dividends or other earnings paid on equity awards not otherwise reflected in fair value.</label>
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    <loc xlink:type="locator" xlink:label="cube_EquityAwardsAdjustmentsMember" xlink:href="cube-20241231.xsd#cube_EquityAwardsAdjustmentsMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="cube_EquityAwardsAdjustmentsMember_lbl" xml:lang="en-US">Total Equity Awards Adjustments [Member]</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cube_EquityAwardsAdjustmentsYearEndFairValueOfAwardsGrantedInCurrentYearMember_lbl0" xml:lang="en-US">This member presents the equity awards adjustments on the year-end fair value of any equity awards granted in the applicable year that are outstanding and unvested as of the end of the year.</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="cube_PensionAdjustmentsPriorServiceCostMember_lbl0" xml:lang="en-US">This member presents the total pension adjustments, prior service cost.</label>
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