Estimate the flooring materials required for a room. Enter the room size and the plank or tile dimensions to get the floor area, the units required and the total area including a waste allowance.
Enter the room length and width in metres, and the dimensions of one plank or tile in centimetres. Add a waste percentage to cover cuts, especially with diagonal or patterned layouts.
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A flooring calculator works out how many planks or tiles you need for a room from its dimensions and the unit size, with a waste allowance for cuts and pattern matching.
5–10% for a straightforward rectangular room with straight-laid planks. Allow more for diagonal layouts, herringbone or rooms with lots of alcoves and angles.
Measure the full floor area; the waste allowance covers minor features. Remove the area of large permanent fixtures only if you're confident.