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Concrete block quantities

Blocks by wall area, courses and openings.

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Concrete block quantities

Calculates block count by modular wall area, including openings and waste.

Formula-checkedGuarded inputs · live redraw · print-safe sheet
Member / cut geometryMeasured dimensionDatum / centre3D context · 2D dimensions govern
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Calculated dimensions

All values update from the same geometry used to render the drawing.

Order quantity163 blocks
Net blocks155
Gross wall area14.4 m²
Net wall area12.4 m²
Courses12
Allowance8 blocks
Verify before cutting.These results describe geometry only. Confirm stock sizes, tolerances, code and engineering requirements for the actual build.