Brick calculator
How many bricks do you need?
Enter the dimensions of each wall. We calculate the blocks needed using the standard ISSB block size — 242 mm long × 178 mm wide × 115 mm high — about 36 bricks per square metre of wall.
Walls
Doors & windows
Openings are subtracted from the wall area. Sizes are pre-filled with standard openings — adjust them if yours differ.