How the calculation works
Tile count is the number of tiles along the length times the number along the width, then increased for cuts and breakage.
A 10% waste allowance is common for a straight layout. Diagonal layouts need more.
Worked example: 120 by 100 inch floor, 12 inch tiles, 10% waste
- Along the length: 120 ÷ 12 = 10.
- Along the width: 100 ÷ 12 = 9, which rounds up to 9.
- Tiles = 10 × 9 = 90.
- With 10% waste, order 99.
12 inch tiles on a 120 by 100 inch floor
| Waste | Tiles to order |
|---|---|
| 0% | 90 |
| 10% | 100 |
| 15% | 104 |