Enter the room’s floor area, how many square metres one pack of laminate covers (it’s printed on the label), and a waste margin for cuts. The tool gives the number of whole packs to buy and the total coverage. Everything runs on your device.
Enter a value.
Enter the floor area and coverage per pack to see how many packs to buy.
Packs are rounded up to whole units. Keep a spare pack from the same batch for future repairs.
How it works
Divide the floor area by the coverage per pack and round up — packs are sold whole. A pack covering 2.2 m² over a 20 m² room is about 9.1 packs, so you buy 10. The label’s coverage figure already accounts for the plank size, so you only need the room area and that number.
Add a waste margin for the offcuts at the ends of rows and around door frames. Eight percent suits a simple rectangular room with planks laid the long way; use 10–12% for diagonal layouts, angled walls, or narrow rooms where more planks get cut. The margin is added to the area before the pack count.
Practical examples
A living room
A 24 m² room with packs covering 2.13 m², at 8% waste: 24 becomes 25.9 m², which is 13 packs (they cover 27.7 m², leaving a small reserve).
A narrow hallway
A long 1.2 m × 7 m hall is 8.4 m². Narrow spaces waste more on cuts, so use 12%: 9.4 m² at 2 m²/pack is 5 packs.
A bedroom laid diagonally
Diagonal planks in a 16 m² bedroom mean more offcuts. At 12% waste, 16 becomes 17.9 m²; with 2.5 m²/pack that’s 8 packs.
Frequently asked questions
Where do I find the coverage per pack?
It’s printed on the pack label and the product listing, usually as “m² per pack” — commonly between 1.5 and 2.7 m². Enter that figure directly; you don’t need the individual plank dimensions.
What waste margin should I use?
Eight percent is fine for a plain rectangular room. Increase to 10–12% for diagonal layouts, rooms with bays or angled walls, and long narrow spaces, all of which produce more unusable offcuts.
Why buy a whole extra pack?
Because packs are sold whole and the offcut from the last row rarely finishes the job exactly. A spare pack from the same batch also lets you replace a damaged plank later with a matching shade.
How do I measure the floor area?
Multiply the room’s length by its width. For an L-shape or a room with an alcove, split it into rectangles and add them. The area calculator handles non-rectangular rooms.
Does the underlay come into this?
No — underlay is sold separately and usually by the roll in its own coverage. Calculate it the same way if you like: floor area divided by the roll’s m², rounded up.
Does plank direction change how much I need?
It changes the waste, not the base area. Laying planks along the longest wall generally wastes the least; diagonal and short-wall layouts cut more planks, which is why you raise the waste margin.
Can I use this for engineered wood or vinyl planks?
Yes. Any click or plank flooring sold by pack coverage works — enter its m² per pack. Only sheet vinyl, sold off a roll by width, needs a different calculation.
Is my room size sent anywhere?
No. The calculation runs entirely in your browser and none of the numbers you enter are uploaded or logged by analytics.
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