Block & Brick Calculator
Count the concrete blocks or bricks needed for a wall, deducting doors and windows and allowing for the mortar joint.
Your measurements
Estimate
- Units needed (with wastage)
- 391 pcs
- Units before wastage
- 372 pcs
- Net wall area
- 32 m²
Counts face area only. Thickness does not change the count for a single-leaf wall.
Common questions
How many 400 × 200 blocks per square metre?
About 12.5 blocks per m² if joints are ignored, and about 11.6 per m² with a 10 mm mortar joint.