Flooring Calculator (Laminate/Parquet)
Flooring material by area.
Tip: Order 10% extra for cuts and mistakes — especially for diagonal patterns.
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About this digital tool
The flooring calculator helps you find how many square metres of laminate, parquet or other flooring material to buy for a room. Enter the width and length, choose the waste (5%, 10% or 15%) and, if you like, the price per m² to see the total cost.
The net area is width × length. The tool adds the waste percentage for cuts and mistakes, and rounds up to boxes assuming about 2.5 m² per box. A 10% waste allowance is common, while for diagonal laying or a herringbone pattern choose 15%. The tool serves homeowners, fitters and anyone comparing prices before buying.
How to use
- Enter the width and length of the room in metres.
- Choose the waste percentage: 5%, 10% or 15%.
- Optionally enter the price per m² to see the cost.
- Read the area with waste, the number of boxes and the estimated cost.
Frequently asked questions
How much extra material is needed for waste?
For straight laying: 5–10% extra. For diagonal or patterned laying: 10–15%. Rooms with many corners need more.
How many square metres of laminate should I buy for a room?
Calculate the area (width × length) and add 5–15% waste. For a 4 × 5 m room with 10% waste you need 22 m². The tool does this automatically.
How many square metres are in a box of laminate?
It depends on the manufacturer, because boxes vary. The tool uses 2.5 m² per box as an indicative value; check the label of the product you will buy and divide the total by the box's real area.
How is the cost of the flooring calculated?
Enter the price per m² in the relevant field. The tool multiplies it by the area with waste included, not the net area, because you pay for the extra material anyway.