Concrete Block Calculation Guide
This guide shows how to estimate the number of concrete blocks, mortar, sand, and cement required for a 1 m² block wall.
A standard concrete block size of 400 mm × 200 mm covers 0.08 m², so approximately 12.5 blocks are needed per square meter. It also provides a simple method for calculating mortar and material quantities for masonry work.
Key Points
✅ 1 m² wall = 12.5 concrete blocks
✅ Standard block size = 400 × 200 mm
✅ Mortar is used to bond blocks together
✅ Sand and cement quantities can be estimated from mortar volume
✅ Useful for site estimation and material planning
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