Flooring and Tile Calculator (Waste and Packs)

Net area is length × width. Order area adds waste (8–10% is typical; tile often 10–15%). Packs = ceil(order area / pack coverage).

Inputs

Units

Results

Net area: 192.00ft²
Area to buy: 211.20ft²
Packs: 11

Recommended gear

Calculation method

A 16×12 ft room is 192 ft². Ten percent waste is 211.2 ft². At 20 ft² per pack that is 11 boxes. Metric mode converts the room and the pack rating together so the pack count stays consistent.

Exact formula

waste is a percent of net area. Pack coverage is the box rating in ft² or m².

Dye lots

Order every pack in one purchase. Leftover from a later lot may not match.

Frequently asked questions

How much waste for tile vs laminate?

Straight laminate 8–10%. Tile, diagonals or herringbone 12–15%.

Do I subtract the island?

This rectangle is the full floor. Subtract a cabinet footprint yourself if you will not tile under it.

Stairs?

Use the stair calculator for rise/run, then add tread area separately. This tool is rooms.

Disclaimer — no professional advice, no liability

Pattern layouts, herringbone and out-of-square rooms eat more waste. Buy an extra pack if the dye lot may disappear.

These calculators, pages and any related content are provided “as is” and “as available”, solely for general educational and informational purposes. They are simplified mathematical estimates, not a construction drawing, cut list or material takeoff, and they do not constitute engineering, architectural, structural, building-code or other professional advice.

Results can be wrong, incomplete or inapplicable to your lumber, moisture content, species, fasteners, climate, codes or use case. You must independently verify every figure, assume all risk, and have a licensed contractor, carpenter or structural engineer review any purchase or installation before you act on it.

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