How to Calculate Flooring
Measure the finished length and width of each similar room. The calculator multiplies those dimensions, applies the number of rooms, and then adds the selected waste allowance.
Formula
Order area = Length × Width × Rooms × (1 + Waste %)
Boxes and Coverage
Box quantities are rounded up because flooring is normally sold by full box. Confirm the coverage printed on the selected product before purchasing.
Waste Allowance
Waste helps cover cuts, layout, defects, and future repairs. Complex rooms and diagonal patterns often require a larger allowance.
Calculation Standards
This tool uses documented formulas and high-precision internal values. Displayed results may be rounded for readability. Review the assumptions and verify important decisions with a qualified professional.
Read our calculation methodology