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Cover Page
 12 Months Ended
Dec. 31, 2024
Document Information [Line Items]  
Document Type S-11/A
Amendment Flag false
Entity Registrant Name SMARTSTOP SELF STORAGE REIT, INC.
Entity Central Index Key 0001585389
Entity Filer Category Non-accelerated Filer
Entity Small Business false
Entity Emerging Growth Company false
Entity Address, Address Line One 10 Terrace Road
Entity Address, City or Town Ladera Ranch
Entity Address, State or Province CA
Entity Address, Postal Zip Code 92694
City Area Code 866
Local Phone Number 418-5144
Business Contact  
Document Information [Line Items]  
Contact Personnel Name Nicholas M. Look
Entity Address, Address Line One 10 Terrace Road
Entity Address, City or Town Ladera Ranch
Entity Address, State or Province CA
Entity Address, Postal Zip Code 92694
City Area Code 866
Local Phone Number 418-5144