Flooring Calculator: Boxes of Laminate, Vinyl & Tile
Calculate boxes of flooring needed with waste for straight or diagonal layouts.
✓ Formula shown✓ No signupUpdated 2026-10-22
Before you buy
Most people under-order. Add the waste allowance shown above, and buy one extra bag or box for touch-ups. Compare current prices for flooring:
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Worked examples
| Area | Box | Boxes (+10%) |
|---|---|---|
| 150 sq ft | 20 sq ft/box | 9 boxes |
| 200 sq ft | 22 sq ft/box | 11 boxes |
| 400 sq ft | 24 sq ft/box | 19 boxes |
How the calculation works (sources & assumptions)
Boxes = area × (1 + waste) ÷ coverage per box, rounded up. Keep a spare box for future repairs, since dye lots change.
FAQ
How much extra flooring should I buy?
10% for straight layouts, and 15–20% for diagonal or herringbone patterns.
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