You'll need about
10
boxes (with 10% waste)
198
sq ft with waste
180
sq ft area
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How this is calculated
length × width = floor area · × 1.10 for cutting waste · ÷ coverage per box = boxes (rounded up). Diagonal or herringbone layouts waste more — bump the waste allowance to 15% for those.
This is a planning estimate — always confirm against your supplier and the specifics of the job before ordering.
Flooring calculator: FAQ
How much flooring do I need?
Measure the room’s length and width, multiply for the area, add about 10% for cuts and waste, then divide by the square feet each box covers (printed on the box, often 20–24 sq ft).
How much extra flooring should I buy for waste?
About 10% for a standard straight layout. Go to 15% for diagonal or herringbone patterns, or for rooms with lots of cuts and angles. Buy it all at once so the dye lot matches.
How many boxes of flooring do I need?
Divide your total area (including waste) by the coverage per box, then round up. A 15×12 room with 22 sq ft boxes needs 9 boxes at 10% waste.
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