Self Storage Size Guides Quick Links 5' x 5' 5' x 10' 5' x 15' 10' x 10' 10'x15' 10' x 20' 10' x 25' 10' x 30' 5' x 5' (25 Sq. Ft.) Equivalent To: Regular Closet 5' x 10' (50 Sq. Ft.) Equivalent To: Walk-in Closet 5' x 15' (75 Sq. Ft.) Equivalent To: Large Closet 10' x 10' (100 Sq. Ft.) Equivalent To: Half of a one-car garage 10'x15' (150 Sq. Ft.) Equivalent To: Two-thirds of a car garage 10' x 20' (200 Sq. Ft.) Equivalent To: Standard one-car garage 10' x 25' (250 Sq. Ft.) Equivalent To: A three-bedroom house 10' x 30' (300 Sq. Ft.) Equivalent To: Standard two-car garage
