Hardwood Flooring Calculator
Hardwood flooring is sold in boxes, each covering roughly 20 sq ft. Enter your room dimensions, board width, and waste factor to get the number of boxes and total material cost. Always acclimate hardwood to the room for 48–72 hours before installation to prevent expansion gaps.
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Top PickHardwood Flooring — Home Depotfrom $2.99/sq ft* Affiliate links — we may earn a commission at no cost to you.
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How to Use This Calculator
- 1Enter your measurements in the fields above. Use the units shown next to each field (ft, in, etc.).
- 2Click Calculate to get your material estimate instantly.
- 3Review the highlighted result — it shows the key quantity you need to order.
- 4Use Copy Results to save your estimate, or bookmark the URL — your inputs are encoded in the link.
Pro tip: Always add 10% to your material order to account for waste, cuts, and defects.
Frequently Asked Questions
How many boxes of hardwood flooring do I need for a 12×10 room?
A 12×10 room is 120 sq ft. With a 10% waste factor, you need 132 sq ft of material. At 20 sq ft per box, that's 7 boxes. Always buy at least one extra box to keep for future repairs.
What is the standard waste factor for hardwood flooring?
Use 7–10% for straight-lay installations in a rectangular room. Increase to 15% for diagonal layouts or rooms with many angles. Add 5% more for herringbone or parquet patterns.