6x6 & 18x18 Tile Pattern Calculator
This layout repeats a 24x18 module of four tiles in two sizes — one 18x18 and three 6x6. The 18x18 tile it uses also stands on its own — 18x18 Tile Pattern.
Two-Tile Pattern — 6x6 & 18x18
Opuslay — tile layout worksheet- Room:
- 3 m × 2.5 m
- Units:
- Metric (cm / m²)
- Anchor:
- Left · Top
- Layout angle:
- Straight
- Tile colours:
- Single colour
Material breakdown
| Format | Qty / Pattern | Share | Qty / Room | Area / Room |
|---|---|---|---|---|
| 45x45 cm | 1 | 75.0% | 30 | 5.63 m² |
| 15x15 cm | 3 | 25.0% | 85 | 1.88 m² |
| Total | 4 | 100% | 115 | 7.50 m² |
What you'll need to buy
Tiles to buy
| 15x15 cm | 90 tiles | 2.02 m² |
| 45x45 cm | 33 tiles | 6.68 m² |
Total 123 tiles · 8.71 m² (incl. 16% cuts & breakage)
Adhesive & grout
- Thin-set adhesive: ≈ 40.5 kg (2 × 50 lb bags) — recommended trowel: 12mm notch, large format
- Grout — the tile sets the joint width, not you:
- ≈ 2.3 kg (1 × 10 lb bag) — 3mm joint, rectified / tight-set tile
- ≈ 3.8 kg (1 × 10 lb bag) — 5mm joint, natural or non-rectified tile
Adhesive: allow a little over on an uneven substrate, or if you back-butter large tiles — both eat more than a flat bed.
Grout: the 25 lb bag is the usual size (10 lb for small jobs). Buy it in one go and stick to a single bag size: bags from different batches can dry to slightly different shades.
It's the tile that decides the joint, not the setter — dry-lay a section to find your width. Assumes 9.5mm tile depth; adjust for your product — thicker tiles need more.
Share & export
Save the Two-Tile Pattern — 6x6 & 18x18 layout to your moodboard, or send the link to your tiler — it reopens with your room dimensions.
