How much to order
Floors are ordered by the box, with extra for cuts, breakage and future repairs. Order once and the whole floor comes from one production run, in one tone. This guide covers the measuring and the overage each pattern needs, and the calculator below does the arithmetic for you.
Download as PDFThe calculator
Bring the box count and the product's order code to any PORCEMALL retailer.
Why overage exists
Overage covers three things. Cuts at walls and around cabinets consume partial tiles. A small number of pieces arrive or break imperfect. And the spares you store are the only tiles guaranteed to match your floor, because a later production run can vary slightly in tone. Order once and keep the leftovers.
Overage by pattern
| Straight lay | 10% |
|---|---|
| Offset and brick patterns | 15% |
| Diagonal, herringbone and chevron | 20% |
| Rooms with many corners and niches | Round up beyond the percentage |
Fifteen percent is the standard answer when unsure. Your retailer confirms it against the pattern and the room.
A worked example
A 14 by 18 foot room, offset pattern, 15.5 sqft per box
Common questions
How much extra tile should I order?
Ten percent for a straight lay, fifteen for offset patterns, twenty for diagonals and herringbone. When unsure, fifteen.
Why do I have to buy whole boxes?
Tile ships and is stocked by the box. Round up, and the partial box left over becomes your repair stock.
What happens if I run out mid-job?
A new order can come from a different production run with a slight tone shift, and it will read as a patch. This is the reason overage exists, so order once.
Should I keep leftover tile?
Yes, stored flat and dry. A repair years later needs tile from your exact run. Keep a box label, which carries the order code and the run.
Does the overage include pattern waste?
The percentages are the pattern waste. Rooms with many corners add their own cuts, so round up rather than down.
Check any floor against this guide
Every PORCEMALL product page lists its ratings in the quick facts and in the technical data table. Open a product page and check it against this guide.