How this concrete block calculator works
Wall face area is divided by the effective block module including mortar joints, then increased for waste.
How to use it
- Wall length. Enter the value in ft.
- Wall height. Enter the value in ft.
- Block face length. Enter the value in in.
- Block face height. Enter the value in in.
- Mortar joint. Enter the value in in.
- Waste allowance. Enter the value in %.
- Request the result. Add your email, then select “Email & show my result.”
What to do with the number
Openings and bond patterns can change the final quantity; the estimate intentionally focuses on face coverage. Subtract large openings by calculating wall sections separately.
Planning estimate
Use this result as a starting point, not a guarantee. Product specifications, site conditions, manufacturer guidance, local codes, taxes, labor, tolerances, and rounding can change the real requirement or cost.