Estimate bricks from wall area, openings, brick coverage and a custom waste allowance - figures update as you type.
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Figures update as you type. Nothing you enter leaves this tab, and no values are stored.
The release check uses a 20×8 ft wall, seven bricks per square foot and 10% waste. The calculator returns 1,232 bricks and reports the 160 ft² net wall area used in the calculation.
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Browse all specialized calculatorsA brick calculator estimates how many bricks a wall needs from its length and height, then subtracts doors and windows before adding a realistic waste allowance. That makes it useful for an early material estimate for a garden wall, house elevation, boundary wall, fireplace surround, or small repair. A common modular brick is often around seven bricks per square foot with a normal mortar joint, but brick sizes vary by region and type. For metric work, use the coverage supplied by the brick manufacturer rather than assuming the imperial default. Enter the combined area of openings, not just their width, so doors and windows are removed correctly. The estimate covers brick quantity only; mortar, ties, lintels, foundations, backing, labour and delivery need separate allowances.
Calculate net wall area as length multiplied by height minus the combined area of openings. Multiply that area by the number of bricks covering one unit of area, then multiply by 1 plus the waste percentage divided by 100. Round up to a whole brick for the final estimate.
A 20 by 8 foot wall has 160 square feet of gross area. A 3 by 7 foot door removes 21 square feet, leaving 139 square feet. At seven bricks per square foot, the base quantity is 973. Adding 10% waste gives 1070.3, so the estimate rounds up to 1071 bricks.
Coverage depends on the brick face and mortar joint. As an illustrative layout, a 200 by 60 mm face with 10 mm joints occupies a 210 by 70 mm module. Dividing 1,000,000 square millimetres by 14,700 gives about 68.03 bricks per square metre. Confirm actual coverage with your supplier; this example is not a universal brick size.
Calculate each wall face separately when heights or openings differ, then combine the quantities. A single face estimate does not automatically account for multiple leaves, piers, returns or decorative bonds. Supplier pack sizes may require rounding your order further. The result is a materials estimate, not a structural design or a check of the wall's load capacity.
About 7 modular bricks per square foot of wall face with a standard mortar joint. The tool uses that plus 10% waste; confirm for unusual brick sizes.
Measure each opening's width multiplied by height, add those areas together, and enter the total as Openings area. The calculator subtracts it from the gross wall area before estimating bricks.
No. It estimates brick quantity from net face area, coverage, and waste. Mortar, ties, lintels, structural backing, foundations, labour, and delivery need separate calculations.
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