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Tile calculator
Enter your room, choose a tile and a layout, and get boxes, adhesive, grout and an example cost. Add the whole list to your cart in one tap.
How to measure
Measure the floor, not the plan
Walls are rarely square. Two minutes with a tape saves a return trip.
Longest length
Measure wall to wall at the longest point, in metres.
Widest width
Do the same across the room. For L shapes, split into two rectangles.
Take away
Subtract fixed units, a shower tray or a kitchen island footprint.
Add wastage
10% for straight lay, 15% for diagonal, herringbone or many cuts.
Wastage guide
Why the extra
Cuts at walls, door frames and breakages in transport all use tiles.
| Layout | Add | Notes |
|---|---|---|
| Straight lay, small room | 5% | Bathrooms under 6 sqm with few cuts |
| Straight lay | 10% | Most rooms, the safe default |
| Brick bond or offset | 10 to 12% | Plank tiles at a third offset |
| Diagonal | 15% | Every edge tile is cut |
| Herringbone | 15 to 20% | Plank tiles only, ask a consultant |
Batch matters
Buy the whole room at once
Tiles from different production runs can differ in shade. Buy every box for a room together, and keep one box spare with its batch code for future repairs.
Questions
Calculator questions
No. Measure the room perimeter in metres, take off door widths, and ask for skirting by the metre.
About 4.5 sqm per 20 kg bag on a flat floor with a 6 mm bed. Uneven floors use more.
Yes, sealed boxes within 14 days with your receipt.