Flooring Calculator
Updated Formulas shown
A 15 × 12 ft room with 10% waste needs 198 ft² — 9 boxes at 22 ft² per box.
Boxes of flooring
9
198 ft² incl. waste
- Area to buy
- 198 ft²
- Square yards
- 22 yd²
- Room area
- 180 ft²
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Frequently asked questions
How much flooring waste should I add?
7–10% for straight plank layouts; 15% for diagonal or rooms with many angles.
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Estimates only. Check quantities with your supplier or contractor before ordering.