Flooring orders need more than the room’s exact square footage. Cuts, damaged pieces, pattern matching, installation direction, and full-carton packaging all affect how much material you should buy.
Find the room area
For a rectangular room, multiply length by width. A 12 ft × 10 ft room has 120 square feet. Split irregular rooms into rectangles and add the areas.
Add a cutting allowance
With a 10% allowance, 120 square feet becomes 132 square feet of planning coverage. Diagonal layouts, patterns, many doorways, and fragile materials may need more.
Round to full cartons
Divide planning coverage by the product’s carton coverage and round up. Keep a labeled spare quantity when future repairs would be difficult after a product is discontinued.
Check the installation direction
A single waste percentage cannot model every layout. Confirm plank direction, transitions, closets, stairs, substrate condition, and manufacturer instructions before ordering.
Sources
The figures and rules in this guide are checked against:
- Plan & Install Your New Floors — Shaw Floors
- Flooring Calculator — Mohawk Flooring
- Consumer Outreach — National Wood Flooring Association
- Technical Guidelines — National Wood Flooring Association