Brick and block calculator
Bricks or blocks and mortar for a wall, with openings and waste.
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A half brick wall uses about 60 bricks per square metre and a one brick wall about 120. Blocks come in at 10 per square metre. Take off windows and doors, add waste, and you have your order.
The calculator also gives mortar and sand quantities and wall ties for cavity walls, based on standard 10 mm joints.
Questions people ask
How many bricks are in a square metre?
About 60 for a half brick wall (102.5 mm thick) and 120 for a one brick wall.
How many wall ties per m²?
Typically 2.5 per square metre in the main wall area, with extra ties at openings.
How much waste should I allow?
5% is normal for bricks. Allow 10% for cut heavy work or reclaimed bricks.
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