Loona Construction Calculators
Laminate, vinyl plank or engineered wood — enter the room size and the coverage printed on the box, and this calculator tells you how many boxes to buy, cutting waste included. Works in square metres or square feet.
10% for a straight (parallel) layout in a rectangular room. Allow 15% for diagonal or herringbone layouts, and 15–20% for rooms with many alcoves, bays or angled walls.
On the packaging and in the product listing — it is the total area the planks in one box cover, for example 2.2 m² or 24 ft². It differs between brands, plank widths and ranges, so never guess it.
Yes — keep one unopened box from the same batch. Flooring ranges are discontinued regularly, and a spare box makes a future repair possible instead of a full re-floor.
Flooring needed = Room length × Room width × (1 + Waste %)
Boxes = Flooring needed ÷ Coverage per box, rounded up
Irregular rooms: split them into rectangles, calculate each, and add the boxes together. Measure skirting-to-skirting, and into doorways and alcoves.
Split it into two rectangles, measure each, and either add the areas before calculating or calculate boxes per rectangle and add them. Always measure to the skirting board, not the wall behind it.
Yes — any flooring sold by coverage per box or pack: laminate, LVT and vinyl plank, engineered and solid wood boards, and decking boards when sold by coverage.
Yes — switch to Imperial. Room dimensions in feet, box coverage in ft² per box; the box count matches the metric calculation for the same room.
Add this calculator to your own website or blog — it is completely free, needs no sign-up, and always shows the latest version. Copy the code below and paste it into your page where you want the calculator to appear. Keeping the small “Powered by Loona Automation” credit line under the embed helps keep this tool free — but you are free to style or remove it; the tool works either way.