Tiny Room Lab
Size charts
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Sizes
Bed Size Chart
Every US mattress size in inches and centimeters — twin to California king — plus the smallest bedroom each one fits with a 24-inch walkway.
Twin
Twin XL
Full
Queen
King
California King
By room size
7 × 10 ft
8 × 10 ft
9 × 10 ft
10 × 10 ft
10 × 12 ft
11 × 12 ft
12 × 12 ft
12 × 14 ft