Basic method
Calculate wall area first. Then divide the area by the effective face area occupied by one brick and its mortar joint. The exact effective area depends on the actual brick size and joint.
Worked example
A 5 m × 3 m wall has a gross area of 15 m². Divide this by the effective face area for the selected brick and mortar joint to obtain an approximate quantity.
How to use the calculator
Enter wall length and height. Check the assumptions used by the calculator, then compare the result with the actual brick size and project measurement method.
Where it is used
It supports preliminary estimates for partition walls, external masonry, boundary walls, renovation and educational quantity exercises.
Common mistakes
Check actual brick dimensions, deduct significant openings when required, keep units consistent and avoid treating a rough estimate as an exact procurement quantity.
Use the Brick Quantity Calculator
Enter your project values and get a quick preliminary calculation.
Frequently Asked Questions
How are bricks calculated?
Divide wall area by the effective area occupied by one brick and mortar joint.
Should doors and windows be deducted?
For a detailed estimate, significant openings should normally be deducted according to the project measurement method.
Does it include wastage?
Check the calculator assumptions and add a project allowance if required.
Can every brick size use the same rate?
No. Brick dimensions and mortar joints affect quantity.