Flooring Calculator
Enter your room dimensions and this flooring calculator shows the square footage and how many boxes to buy, with a waste margin for cuts built in.
Works for laminate, vinyl plank, engineered wood and hardwood; just set the coverage printed on the box.
Enter your measurements
Flooring you need
6boxes
covers 100 ft²
💡 Buy 6 boxes and keep one spare, dye lots vary, so matching later is hard.
6
boxes to buy
incl. waste
$270
Est. cost
@ ~$45/box
100 ft²
Area
floor
- Floor area
- 100 ft²
- Coverage per box
- 20 ft²
- boxes to buy (incl. waste)
- 6
The 2-minute guide
Always add 10% for waste
Cuts at walls, doorways and around corners waste material, and planks with defects get discarded. Ten percent extra is standard; bump it to 15% for diagonal or herringbone patterns.
Buy one extra box on purpose
Flooring is made in dye lots that vary slightly. Keep a spare box from the same lot so a future repair blends in, matching a discontinued lot years later is nearly impossible.
Frequently asked questions
How many boxes of flooring do I need?
Divide your room's square footage (length × width) by the coverage printed on the box, then add about 10% for waste. This calculator does it for you.
How much extra flooring should I buy?
Add 10% for straight layouts and 15% for diagonal or herringbone. Keep at least one full spare box for future repairs.