Brick Calculator
Calculate exactly how many bricks you need for any wall, pier, or structure. Accounts for mortar joints, different brick sizes, and a waste allowance.
Brick Quantity Guide
UK Standard Brick Counts
Standard UK brick (215×102×65mm) with 10mm mortar joints: 60 bricks per m² for a half-brick wall (single skin), 120 per m² for a full-brick wall. Common metric brick with 10mm joints: about 53 bricks/m² for half-brick wall.
Matching Existing Brickwork
If extending or repairing existing brickwork, try to match the original brick dimensions, colour, and texture. Brick dimensions have changed over time — older pre-metric bricks may require specially sourced facing bricks or reclaimed stock.
Mortar Coverage
A 25kg bag of premixed mortar typically covers 20–30 standard bricks at 10mm joint width. Cement:sand mixed mortar: 1:4 ratio. For 1,000 standard UK bricks in a half-brick wall, budget approximately 15–20 bags of mortar.
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