12×12 Room Square Feet
A 12 ft by 12 ft rectangular room has 144 square feet of floor area.
Quick answer
144 sq ft
With 5% waste151.2 sq ft
With 10% waste158.4 sq ft
With 15% waste165.6 sq ft
How this works
For a rectangular room, multiply length by width: 12 × 12 = 144 square feet. Flooring and tile projects usually require an additional waste allowance.
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