CubeSmart Investor Presentation Deck

2021 Highlights Executing on strategic objectives Organic Growth 10.3% Revenue Growth¹ 13.2% NOI Growth¹ +4.3% Expense Growth¹ 95.5%, +140 bps YOY SF Occupancy as of August 31, 2021 27 CUBESMART External Growth² $67.1 million wholly-owned acquisitions³ $129.7 million joint-venture acquisitions³ $75.1 million development openings Added 74 management contracts 1. Same-store results for the six months ending June 30, 2021 2. For the six months ending June 30, 2021 3. Year to date through July 29, 2021 Financing $142.1 million in net proceeds from 3.9 million shares issued under the ATM equity program² CUBESMART self storage 800-800-1717

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