Opus Romano Pattern — 8x16, 16x16 & 24x24
This Opus Romano variant works from three tile sizes — 8"x16", 16"x16" and 24"x24" — built around a single large 24"x24" square per module. It keeps the interlocking logic of the full 5-size Opus Roman pattern, where a fixed set of sizes repeats to a fixed scheme rather than being laid at random, but resolves it in far fewer pieces, closer in spirit to the large-format 3-size version.
Compact 3-Size Opus Romano Pattern
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 |
|---|---|---|---|---|
| 60x60 cm | 1 | 52.9% | 15 | 3.90 m² |
| 20x40 cm | 2 | 23.5% | 25 | 1.78 m² |
| 40x40 cm | 1 | 23.5% | 13 | 1.82 m² |
| Total | 4 | 100% | 53 | 7.50 m² |
What you'll need to buy
Tiles to buy
| 20x40 cm | 26 tiles | 2.08 m² |
| 40x40 cm | 15 tiles | 2.40 m² |
| 60x60 cm | 13 tiles | 4.68 m² |
Total 54 tiles · 9.16 m² (incl. 22% 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 Compact 3-Size Opus Romano Pattern layout to your moodboard, or send the link to your tiler — it reopens with your room dimensions.
See the full 5-size Opus Roman (8x8, 8x16, 16x16, 16x24, 24x24)See the 3-size version (16x16, 16x24, 24x24)See the plank-format version (8x32, 16x32, 32x32)See the 3-size version with diagonal banding (8x8, 8x16, 16x24)See the more irregular 3-size version (8x8, 8x16, 16x24)