Block mortar calculator
Estimate full-bed joints as the difference between module and block face area, multiplied by depth.
Shopping estimate
Enter your measurements to see an estimate.
How it works
Estimate full-bed joints as the difference between module and block face area, multiplied by depth. Hollow-block face-shell bedding needs a separate estimate.
Worked example
- Net area
- 20 m²
- Block face length
- 39 cm
- Block face height
- 19 cm
- Block depth
- 15 cm
- Joint width
- 1 cm
- Waste allowance
- 0 %
- Mixed yield per bag
- 20 L
Result 12 bags
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