How it works
Multiply length by width for the room's area, then add a waste allowance for cuts and mistakes — about 10% for straight layouts and 15% for diagonal or herringbone.
Formula
Needed = length × width × (1 + waste%)
Example
A 14 × 12 ft room is 168 sq ft; with 10% waste you need about 185 sq ft (10 boxes of 20 sq ft).
Assumptions & limitations
- Material estimates only — buy 5–10% extra for waste and cuts.
- Check coverage figures on your product label.
Frequently asked questions
Should I buy extra?
Yes — keep a spare box for future repairs, since exact colors can be discontinued.