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Area calculator
Calculate the area of a room, floor, wall or other rectangular surface and the amount of material needed with an allowance.
How is area calculated?
Rectangle area is calculated by multiplying length by width. For example, a 5 m × 4 m room has an area of 20 m². The calculator can also add a material allowance for cuts and waste.
The required allowance varies by material, installation pattern and room shape.