Bricks Needed Calculator
Work out how many bricks and how much mortar you need for a wall, single skin or double skin/cavity, from your wall length and height.
Estimate only. This is an indicative estimate, not a quote. Get quotes from local builders' merchants for your exact brick type and wall.
Enter your wall dimensions
Your bricks needed, mortar estimate and total material cost appear here as you type.
How bricks needed is estimated
A single-skin wall (one brick thick) needs around 60 standard UK bricks per square metre; a double-skin or cavity wall, two brick leaves with a gap between them, needs roughly double that, around 120 bricks per square metre. We work out your wall's area, add a wastage allowance for breakages and cuts (5-10% is typical for a straightforward wall, more for walls with lots of corners or openings), then multiply by the bricks-per-m² rate for your chosen wall type and round up to a whole brick. Mortar is estimated two ways alongside it: a rough volume in cubic metres, and a bagged-mortar cost per square metre, both added to the bricks cost for a total material estimate. This figure doesn't deduct doors or windows and doesn't include labour, get a local builder or merchant to confirm quantities and prices before ordering.
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