Calculator
Flooring Waste Calculator
Calculate how much flooring to plan for beyond your measured floor area. Compare waste allowances and account for room size, cuts and installation layout before ordering.
Measured floor area
Enter the actual area being covered, before any waste allowance.
Decimal values are fine.
Need to measure your project first? Calculate square footage.
Flooring and layout
Plank products are cut to fit at walls, doorways and transitions. Plank length, room dimensions and starting row all affect how much material becomes offcut.
Waste allowance
10% is a common starting point for many straightforward flooring projects. It is not universally correct — the right allowance depends on room size, flooring type, product dimensions, layout and installation pattern.
If the flooring manufacturer specifies a waste or overage allowance for your product or installation pattern, use that recommendation.
Enter your measured floor area above to see a planning quantity.
FloorGauge calculators provide planning estimates based on the information you enter. Actual material requirements vary by product dimensions, room layout, installation pattern, site conditions and manufacturer requirements. Verify measurements and product instructions before purchasing flooring.
Understanding flooring waste
What is flooring waste?
Waste is the extra material a project consumes beyond the floor area itself: pieces cut at walls and doorways, offcuts too short to use, damaged or defective boards, and material needed to keep a layout running correctly.
Is 10% flooring waste enough?
For many straightforward rectangular rooms, 10% is a common starting point. It is a starting point rather than a rule — product dimensions, layout and the manufacturer's instructions decide what your project actually needs.
Why small rooms can need a higher percentage
A percentage of a small area is a small amount of material. In a bathroom, a handful of bad cuts can consume the entire allowance, which is why small spaces sometimes warrant a proportionally larger percentage.
Why patterned installations can create more waste
Diagonal, herringbone and other directional layouts cut material at angles and require specific piece lengths, so more of each plank or tile ends up unusable.
Manufacturer recommendations
If your product's installation instructions specify an overage allowance for the product or pattern, use that figure. It takes priority over any general guidance.
Why square footage and box quantity are different
Planning quantity is expressed in square feet. Flooring is sold in cartons that cannot be split, so the amount you actually order is rounded up to whole boxes based on the carton coverage printed on the package.