Concrete Block Fill Calculator
Estimate grout or concrete fill for selected CMU cores from matched manufacturer or supplier information—no login required.
Part of the Concrete & Masonry calculators — see all tools in this category.
Concrete block fill estimate
Enter a matched fill table or measured selective cores. Net, ordered, delivered, and priced quantities remain distinct.
Correct the highlighted inputs to update the result.
Correct the highlighted inputs to refresh the result.
Enter valid inputs to see an updated result.
Sources
- S07: CMHA — Estimating Concrete Masonry Materials — Context only; obtain a matched fill table for the selected unit.
- S08: CMHA — Grouting Concrete Masonry Walls — Full/partial grouting context; it does not provide a universal litres-per-block value.
How it works and assumptions
Choose a manufacturer or supplier table matched to the specific masonry unit and full or partial fill configuration, or measure the selectively filled cores directly. A generic hollow-block percentage is not evidence for a material order.
Declare whether the primary source includes bond beams and reinforcement displacement. Add only separate cavities that are explicitly non-overlapping, then apply an editable ordering allowance and either bag yield or supplier delivery increment.
This schematic estimator is not a reinforcement schedule, structural design, or placement instruction. Confirm the unit, table scope, project drawings, product yield, and supplier minimums before ordering.
Sources and revision
Page revision: 2026-10-12