How flooring box coverage works
The number on a flooring box is coverage, not area you will achieve. How to read it, why the figure differs between batches, and why rounding up to whole boxes is the only safe move.
Last reviewed · Written and maintained by the MaterialBuyCalc editorial team
Coverage is a property of the box, not the product
A box of flooring contains a whole number of planks, and the coverage is however much floor those planks happen to cover. Change the plank length, the plank width, or the number of planks per box, and the coverage changes with it. Two boxes of what looks like the same product in the same shop can hold different amounts, which is why the figure has to come from the box in front of you.
Where to find it
It is printed on the end label, usually as square feet per carton or square metres per box, often next to the plank count and the dimensions. Retailer websites list it too, but they list it per product line rather than per finish, and finishes within a line sometimes differ. If you are ordering online, check it again when the pallet arrives.
Why the rounding matters so much
You cannot buy part of a box, so every calculation ends in a rounding up. A floor needing 8.1 boxes and a floor needing 8.9 boxes both cost nine boxes, but the first leaves you nearly a full box spare and the second leaves you almost nothing. Knowing which side of the line you are on tells you whether you already have a spare for repairs or need to buy one deliberately.
Buy it all at once
Going back for one more box is the most expensive box you will buy: a second trip, possibly a different batch, and sometimes a discontinued product. Working out the total before you go, using the coverage from the actual boxes, is the entire point of getting this number right.