Flooring Calculator
Estimate flooring area with a waste factor. Add price per sq ft for cost.
Quick guide
- Measure each room (length × width) and add them for total area.
- Choose a waste factor based on layout (often 5–15%).
- Convert area to boxes using the product’s coverage per box.
Flooring Calculator
Estimate flooring area with a waste factor. Add price per sq ft for cost.
Units
Results
- Estimated sq ft needed
- 550
How to measure flooring area
- Split L-shapes into rectangles, measure each, then add them.
- Include closets and small areas—cuts there can increase waste.
- Use the manufacturer’s per-box coverage (not just plank dimensions).
Assumptions to double-check
- Diagonal installs and patterns increase waste.
- Stairs require separate estimating (area/risers/treads).
- If you’re matching later, batch differences can matter—buy extra up front.
Buying tips
- If your layout is complex, use a higher waste factor.
- Round up to whole boxes and keep 1–2 boxes for future repairs.
- Confirm underlayment, transitions, and trims—these are separate materials.
Last updated: Dec 2025
FAQ
What waste factor should I use?
Many projects use 5–15% depending on pattern, cuts and room shape.
Do I need to subtract cabinets or closets?
Subtract areas that will not be covered if you want a tighter estimate.
Does this include underlayment?
No. This calculator estimates flooring area only.
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Browse all guides →Disclaimer
Results are estimates for informational purposes only. Always verify measurements and product specifications.