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    <ACCEPTANCE-DATETIME>20250417191055
    ACCESSION NUMBER:		0000950170-25-055677
    CONFORMED SUBMISSION TYPE:	8-K
    PUBLIC DOCUMENT COUNT:		13
    CONFORMED PERIOD OF REPORT:	20250417
    ITEM INFORMATION:		Other Events
    ITEM INFORMATION:		Financial Statements and Exhibits
    FILED AS OF DATE:		20250418
    DATE AS OF CHANGE:		20250417

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			SmartStop Self Storage REIT, Inc.
    		CENTRAL INDEX KEY:			0001585389
    		STANDARD INDUSTRIAL CLASSIFICATION:	REAL ESTATE INVESTMENT TRUSTS [6798]
    		ORGANIZATION NAME:           	05 Real Estate & Construction
    		EIN:				461722812
    		STATE OF INCORPORATION:			MD
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		8-K
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-42584
    		FILM NUMBER:		25848909

    	BUSINESS ADDRESS:
    		STREET 1:		10 TERRACE ROAD
    		CITY:			LADERA RANCH
    		STATE:			CA
    		ZIP:			92694
    		BUSINESS PHONE:		949 429 6600

    	MAIL ADDRESS:
    		STREET 1:		10 TERRACE ROAD
    		CITY:			LADERA RANCH
    		STATE:			CA
    		ZIP:			92694

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	Strategic Storage Trust II, Inc.
    		DATE OF NAME CHANGE:	20130828
    </SEC-HEADER>
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    <TYPE>8-K
    <SEQUENCE>1
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    <DESCRIPTION>EX-99.1
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    <TYPE>GRAPHIC
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    <DESCRIPTION>GRAPHIC
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    <TYPE>EXCEL
    <SEQUENCE>7
    <FILENAME>Financial_Report.xlsx
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    <TEXT>
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    <SEQUENCE>11
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    <FILENAME>ck0001585389-20250417_htm.xml
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