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Flooring Calculator

ft
ft
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sq ft
$
Estimated Cost
Square Footage
With Waste
Boxes Needed
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What Your Result Means

How This Calculator Works

You enter the room's length and width in feet, a waste percentage, the square footage per box (from the product label), and your flooring's price per square foot. The tool multiplies length by width, adds the waste factor, divides by box coverage to round up to a whole box count, and multiplies by price for total cost.

Quick Questions

What waste percentage should I use?

10% is standard for straight-lay installations. Use 15% for diagonal layouts or rooms with many angles and closets.

How do I find coverage per box?

It's printed on the flooring box or product listing — typically 20–30 sq ft for laminate and vinyl plank.

Does this work for tile flooring?

For basic area and box estimates, yes. For tile-specific grout spacing, use the Tile calculator instead.

Should I add extra for pattern matching?

Yes. Wide-plank or patterned flooring can waste more material at seams. Add 5% on top of the standard 10% waste.

Does this include underlayment?

No. Underlayment is a separate material and is generally purchased to match the raw room area (no waste factor needed).

Sources

Method & review

MethodologyHow we calculate this Reviewed & Updated2026-04 Next review2027-04

Estimate only. Results reflect your inputs and standard formulas. Double-check important decisions independently.