Home / Flooring Calculator

Flooring Calculator

Square footage, boxes and cost for a room.

Details

Results

Room area
Area incl. waste
Boxes needed
Estimated material cost

Estimates — add extra for waste and confirm with your supplier.

How it works

Enter the room's length and width for square footage, add a waste percentage for cuts and mistakes, then enter your box coverage to get boxes needed (rounded up) and material cost.

Add 10% waste for straight layouts, 15%+ for diagonal or patterned installs.

HomeImprovCalc has more free tools

Plan your whole project with our other free DIY calculators.

Good to know

FAQs

How much waste should I add?

About 10% typical; 15%+ for diagonal/herringbone or busy rooms.

How many boxes?

Total area with waste divided by box coverage, rounded up.

Does it cover odd-shaped rooms?

Split the room into rectangles and add the areas.

Is the cost exact?

No — material only; it excludes underlayment, trim and labor.