Simple planning arithmetic

Construction planning calculators

Enter your own dimensions and supplier coverage figures. These calculators do not specify structural design, concrete strength, mixes, material suitability or installation requirements.

Volume = length × width × depth in metres. Wall units = net wall area × your units-per-area figure × allowance. Paint = area × coats ÷ coverage × allowance. Tiles = area ÷ nominal tile area × allowance, rounded up. Tile count does not model grout joints, cutting layouts or pack sizes. Confirm measurements and product requirements before ordering.

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