March 2023 Investor Presentation

Market Leader in New York City NYC competitive advantage is a key component of our long-term strategy Best-In Class Portfolio Our NYC stores make up the largest portfolio of purpose-built, Class-A properties in the outer boroughs that create vibrant billboards for our brand Unique Submarkets Each borough features a robust local economy with its own unique, stable demand drivers LOADING CUBESMART self storage+logics 800-800-1717 Lowest Supplied Market Supply across the three key outer boroughs is 2.7 SF per capita', the lowest nationally and less than half the national average of 6.2 SF per capita². Supply pipeline is waning due to recent legislative changes removing self- storage eligibility for the ICAP tax incentive program Portfolio Composition³ All Other Markets Bronx Brooklyn 4.6% Queens 5.3% Northern NJ 3.7% Other NYC 0.9% Westchester 1.4% Long Island 1.2% 1. Source: CubeSmart Internal market research 2. Source: 2022 Self-Storage Almanac 3. Total portfolio NOI for the three months ended December 31, 2022 10

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