Floor tile box coverage: three sizes worked out
The tile size does not tell you how much one box covers. In Marazzi’s Room range, read on 1 October 2026, the 100 × 100 cm floor tile covers 2.00 m² a box, the 60 × 60 cm tile covers 1.08 m² and the 45 × 45 cm tile covers 1.22 m². For the same 4 × 3 m floor with 10% extra, those figures give 7, 13 and 11 boxes. The exact square metres per box is the figure to copy.
How this page was made
Kind of page: Worked out, not tested. The sizes, pieces per box and square metres per box are the maker's own figures from its Room catalogue, read on 1 October 2026. The number of boxes and spare area are BuildBatch's arithmetic using flooring formula 0.1.1.
It was drafted with AI tools, and the figures were checked against the maker's catalogue by a second AI tool. No tradesperson and no other person has checked it. It shows no price and no retailer link. How BuildBatch compares products says what "worked out" means and what every page like this must show.
What the maker puts in a box
All three rows below are floor formats in one range. This keeps the material and maker together while the size and packing change. The order is largest tile first. It is not a ranking.
| Tile size | Pieces in a box | Box coverage |
|---|---|---|
| 100 × 100 cm | 2 | 2.00 m² |
| 60 × 60 cm | 3 | 1.08 m² |
| 45 × 45 cm | 6 | 1.22 m² |
Sources. Read 1 October 2026. Marazzi, Room catalogue, Techs & Specs, page 38: the packing table states the size, pieces and square metres per box. The 100 × 100 and 60 × 60 rows are rectified tiles; the 45 × 45 row is the natural matt format.
The 45 cm tile is smaller than the 60 cm tile, but its box covers more because it has six pieces rather than three. The 100 cm tile’s two pieces cover more again. This is why multiplying one tile’s length by its width is not enough: that gives the area of one tile, not the area in the box.
What this means for a 4 × 3 m floor
The floor is 12 m². With 10% extra for cuts and waste, the area to buy for is 13.2 m². For each row, divide 13.2 by the printed box coverage and round up once to a whole box.
| Tile size | Working | Whole boxes | Area bought and spare |
|---|---|---|---|
| 100 × 100 cm | 13.2 ÷ 2.00 = 6.6 | 7 boxes | 14 m² bought; 0.8 m² spare |
| 60 × 60 cm | 13.2 ÷ 1.08 = 12.222 | 13 boxes | 14.04 m² bought; 0.84 m² spare |
| 45 × 45 cm | 13.2 ÷ 1.22 = 10.82 | 11 boxes | 13.42 m² bought; 0.22 m² spare |
Sources. Read 1 October 2026. The box coverages come from the Marazzi Room catalogue packing table. BuildBatch flooring formula 0.1.1 uses a 4 × 3 m rectangle, adds 10% once, divides by each box coverage and rounds up to whole boxes once. An automated test runs those same inputs through the engine.
The 45 cm row happens to leave the least spare area for this floor. That is not a claim about which tile to choose. A different room, allowance or box packing can change the result, and fitting suitability is not decided by the amount left over.
Copy the figure from the exact box
Use the line that says square metres per box, pack coverage or coverage. Check that it belongs to the exact size, finish and product code you are taking home. A range can pack different sizes differently, and an outdoor or textured version may not have the same packing as the indoor tile beside it.
Keep the tile size for setting out the rows and cuts. Use the box coverage for the buying quantity. The two figures answer different questions.
What this page does not tell you
- Which tile suits the floor. Slip resistance, substrate, tile weight, room use and fitting instructions come first. The tiles were not tested for this page.
- The right allowance. Ten percent is BuildBatch’s labelled example for floor tiles. A pattern, diagonal layout, breakages or awkward edges can need another figure.
- Adhesive or grout coverage. Read those from the exact products and the substrate; the tile box coverage does not decide them.
- A price. No price is shown or compared.
Do it with BuildBatch
Open the room refresh planner with flooring chosen. Choose floor tiles, measure the floor, then type the square metres per box from your exact tile and the allowance you have decided. The list counts whole boxes and keeps adhesive, grout and the substrate checks beside them.
Related guides
Questions
Does a bigger tile mean one box covers more floor?
Not necessarily. The number of tiles in the box changes too. In the maker's range on this page, a 100 × 100 cm box covers 2.00 m², a 60 × 60 cm box covers 1.08 m² and a 45 × 45 cm box covers 1.22 m².
Should I calculate from the tile size or the box coverage?
Use the square metres per box printed for the exact tile. Tile size alone does not say how many tiles are packed together, and whole boxes are what you order.