    <SEC-DOCUMENT>0001104659-18-038177-index.html : 20180605
    <SEC-HEADER>0001104659-18-038177.hdr.sgml : 20180605
    <ACCEPTANCE-DATETIME>20180605070129
    ACCESSION NUMBER:		0001104659-18-038177
    CONFORMED SUBMISSION TYPE:	8-K
    PUBLIC DOCUMENT COUNT:		28
    CONFORMED PERIOD OF REPORT:	20180605
    ITEM INFORMATION:		Results of Operations and Financial Condition
    ITEM INFORMATION:		Regulation FD Disclosure
    ITEM INFORMATION:		Financial Statements and Exhibits
    FILED AS OF DATE:		20180605
    DATE AS OF CHANGE:		20180605

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			CubeSmart
    		CENTRAL INDEX KEY:			0001298675
    		STANDARD INDUSTRIAL CLASSIFICATION:	REAL ESTATE INVESTMENT TRUSTS [6798]
    		IRS NUMBER:				201024732
    		STATE OF INCORPORATION:			MD
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		8-K
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-32324
    		FILM NUMBER:		18880063

    	BUSINESS ADDRESS:
    		STREET 1:		5 OLD LANCASTER ROAD
    		CITY:			MALVERN
    		STATE:			PA
    		ZIP:			19355
    		BUSINESS PHONE:		610-535-5700

    	MAIL ADDRESS:
    		STREET 1:		5 OLD LANCASTER ROAD
    		CITY:			MALVERN
    		STATE:			PA
    		ZIP:			19355

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	U-Store-It Trust
    		DATE OF NAME CHANGE:	20040727

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			CubeSmart, L.P.
    		CENTRAL INDEX KEY:			0001300485
    		STANDARD INDUSTRIAL CLASSIFICATION:	REAL ESTATE INVESTMENT TRUSTS [6798]
    		IRS NUMBER:				000000000

    	FILING VALUES:
    		FORM TYPE:		8-K
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	000-54462
    		FILM NUMBER:		18880062

    	BUSINESS ADDRESS:
    		STREET 1:		5 OLD LANCASTER ROAD
    		CITY:			MALVERN
    		STATE:			PA
    		ZIP:			19355
    		BUSINESS PHONE:		610-535-5000

    	MAIL ADDRESS:
    		STREET 1:		5 OLD LANCASTER ROAD
    		CITY:			MALVERN
    		STATE:			PA
    		ZIP:			19355

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	U-Store-It L P
    		DATE OF NAME CHANGE:	20041115

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	Acquiport Amsdell I L P
    		DATE OF NAME CHANGE:	20040812
    </SEC-HEADER>
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    <TYPE>8-K
    <SEQUENCE>1
    <FILENAME>a18-14753_18k.htm
    <DESCRIPTION>8-K
    <TEXT>
    Document 1 - file: a18-14753_18k.htm

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    <DOCUMENT>
    <TYPE>EX-99.1
    <SEQUENCE>2
    <FILENAME>a18-14753_1ex99d1.htm
    <DESCRIPTION>EX-99.1
    <TEXT>
    Document 2 - file: a18-14753_1ex99d1.htm

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    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 3 - file: g147531mmi001.gif

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    Document 4 - file: g147531mmi002.gif

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    Document 5 - file: g147531mmi003.gif

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    Document 6 - file: g147531mmi004.gif

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    Document 7 - file: g147531mmi005.gif

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    Document 8 - file: g147531mmi006.gif

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    Document 9 - file: g147531mmi007.gif

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    Document 10 - file: g147531mmi008.gif

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    <SEQUENCE>11
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    Document 11 - file: g147531mmi009.gif

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    <SEQUENCE>12
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    Document 12 - file: g147531mmi010.gif

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    <SEQUENCE>13
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    Document 13 - file: g147531mmi011.gif

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    Document 14 - file: g147531mmi012.gif

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    Document 15 - file: g147531mmi013.gif

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    Document 16 - file: g147531mmi014.gif

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    Document 17 - file: g147531mmi015.gif

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    Document 18 - file: g147531mmi016.gif

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    Document 19 - file: g147531mmi017.gif

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    Document 20 - file: g147531mmi018.gif

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    Document 21 - file: g147531mmi019.gif

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    <SEQUENCE>22
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    <TEXT>
    Document 22 - file: g147531mmi020.gif

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    <SEQUENCE>23
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    Document 23 - file: g147531mmi021.gif

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    <SEQUENCE>24
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    <TEXT>
    Document 24 - file: g147531mmi022.gif

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    <SEQUENCE>25
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    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 25 - file: g147531mmi023.gif

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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>26
    <FILENAME>g147531mmi024.gif
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 26 - file: g147531mmi024.gif

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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>27
    <FILENAME>g147531mmi025.gif
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 27 - file: g147531mmi025.gif

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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>28
    <FILENAME>g147531mmi026.gif
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 28 - file: g147531mmi026.gif

    </DOCUMENT>
    </SEC-DOCUMENT>