How the calculation works
Add each room’s length × width, then add the waste percentage for cuts and mistakes.
Simple example
Two 10 × 12 ft rooms total 240 sq ft. With 10% waste, plan for 264 sq ft.
Interior
Flooring calculator
Add rooms and estimate flooring with waste.
Your estimate
Enter your measurements and select Calculate to see your estimate.
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Common question
How much waste should I allow?
Simple rooms often use 10%. Complex layouts or patterns may need more.
Results are estimates. Check product coverage, site conditions and professional or code requirements before buying or building.