This flooring calculator works out how much laminate, engineered or hardwood flooring you need for any room. Enter the room size and waste allowance to get the floor area, the number of packs and underlay, plus an optional latex screed estimate.
This flooring calculator turns your room size into a shopping list. It works out the floor area, adds your chosen waste allowance for cuts, then divides by the pack coverage to tell you how many packs of laminate, engineered or hardwood flooring to buy — plus the underlay rolls and an optional latex screed estimate for levelling the subfloor.
| Layout | Suggested waste |
|---|---|
| Straight / brick bond | 10% |
| Diagonal | 15% |
| Herringbone / chevron | 15–20% |
| Room with many alcoves | 15% |
A living room 5 m long and 4 m wide is 20 m². Add 10% waste for a straight lay and you need about 22 m². If each pack covers 2.2 m², that is 22 ÷ 2.2 = 10 packs. The flooring calculator rounds up to whole packs and adds the underlay automatically.
Choosing a floor finish? Compare with the carpet calculator and the tile calculator, or level the base first with the screed calculator.
This flooring calculator measures your room area, adds a waste allowance, then divides by the pack coverage to give the number of flooring packs and underlay rolls you need, rounding up to whole packs.
Measure length × width and add about 10% for waste. An average 4×5 m room needs roughly 22 m² of flooring.
Yes for laminate and engineered wood. It is not usually needed for solid hardwood or vinyl click flooring.
Allow about 10% for straight layouts and up to 15–20% for diagonal or herringbone patterns and rooms with many cuts.
Latex screed is a self-levelling compound poured over an uneven subfloor before laying flooring. Typical depth is 2–5 mm.
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