Free Tool

Blockwork Calculator

Estimate blocks and mortar for wall construction. Enter wall size, openings, block size and joints — the tool estimates blocks, mortar volume and bags.

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Wall length (m)

Wall height (m)

Openings area (m²)

Block width (mm)

Block height (mm)

Joint (mm)

Wastage (%)

Mortar yield per bag (m³)

Joint depth (mm)