New floors? Work out the boxes to buy for every room.
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Measure each room's length and width (split L-shaped rooms into rectangles) and add them up. Then add waste: 5–10% for straight laminate or vinyl, 10–15% for hardwood and 15–20% for diagonal or herringbone patterns.
Divide by the coverage on the box and round up. You will usually need the same area of underlay.
| Units | Feet & inches |
| Rooms (length x width) | 12x10, 8x6 |
| Waste allowance | 10% |
| Coverage per box (sq ft or m²) | 20 |
| Price per sq ft or m² (optional) | 0 |
| Currency | $ |
| Flooring to buy | 184.8 sq ft · 17.17 m² |
| Boxes | 10 (20 sq ft each) |
| Floor area | 168 sq ft · 15.61 m² |
| Underlay | 168 sq ft · 15.61 m² |
184.8 sq ft · 17.17 m²; 10 (20 sq ft each).
| Units | Metres & centimetres |
| Rooms (length x width) | 5x4 |
| Waste allowance | 10% |
| Coverage per box (sq ft or m²) | 2.2 |
| Price per sq ft or m² (optional) | 0 |
| Currency | $ |
| Flooring to buy | 236.8 sq ft · 22 m² |
| Boxes | 10 (2.2 m² each) |
| Floor area | 215.3 sq ft · 20 m² |
| Underlay | 215.3 sq ft · 20 m² |
10 (2.2 m² each).
At least 10% for most rooms, up to 20% for complex layouts.
About 11 boxes of 20 sq ft with 10% waste.
Yes for laminate and most floating floors, unless the planks have it built in.
Leave laminate and wood boxes in the room for about 48 hours before fitting.