Engineering & Construction
Block Quantity Calculator
Count concrete blocks from the wall size, the block face and the joint. Defaults are a 390 × 190 mm block with a 10 mm joint.
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This runs entirely in your browser. Nothing you type is sent to a server.
How to use the Block Quantity Calculator
- 1Enter the wall length and height.
- 2Confirm the block size and joint.
- 3Read the net count and the order count with wastage.
Questions
Why 390 mm and not 400 mm?
400 mm is a common nominal size. The default is the block itself, and the 10 mm joint makes a 400 mm pitch. Type the size you are buying.
Are openings removed?
No. Measure the wall area you actually want filled, or subtract openings from the length and height yourself.