Build & renovate
Brick & Block Calculator
The two numbers every bricklayer carries: 60 bricks per square metre of half-brick wall, 10 concrete blocks for the same area.
Calculator
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How it works
A standard UK brick (215 x 65 mm + 10 mm joints) lays 60/m2 in a half-brick skin; a 440 x 215 block lays 10/m2. Add 5-10% wastage and roughly 30 kg of dry mortar mix per m2 of brickwork.
Frequently asked questions
How many bricks per square metre?
60 for a single (half-brick) skin with standard 10 mm joints; 120 for a solid one-brick wall. Metric blocks: 10 per m2.
How much mortar per m2 of bricks?
Roughly 30 kg of dry mix per m2 of half-brick wall - a little over one 25 kg bag. Blockwork uses about a third of that.