13x13 & 13x20 & 20x20 Tile Pattern Calculator
This layout repeats a 33x33 module of three tiles in three sizes — one 20x20, one 13x13 and one 13x20. Working with a more common tile size? 18x18 Tile Pattern covers the closest standard format.
Three-Tile Pattern — 13x13 & 13x20 & 20x20
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 |
|---|---|---|---|---|
| 50x50 cm | 1 | 47.7% | 21 | 3.58 m² |
| 33x33 cm | 1 | 20.8% | 18 | 1.59 m² |
| 33x50 cm | 1 | 31.5% | 19 | 2.33 m² |
| Total | 3 | 100% | 58 | 7.50 m² |
What you'll need to buy
Tiles to buy
| 33x33 cm | 18 tiles | 1.96 m² |
| 33x50 cm | 18 tiles | 2.97 m² |
| 50x50 cm | 19 tiles | 4.75 m² |
Total 55 tiles · 9.68 m² (incl. 29% 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:
- ≈ 1.6 kg (1 × 10 lb bag) — 3mm joint, rectified / tight-set tile
- ≈ 2.7 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 Three-Tile Pattern — 13x13 & 13x20 & 20x20 layout to your moodboard, or send the link to your tiler — it reopens with your room dimensions.
