Concrete & masonry · Core grout

Measure the cores. Plan the fill.

Convert block count, core openings, fill percentage, waste, and bag yield into a transparent grout order.

← Core length →← Core width →↕ Fill heightCore count per block

1 Count blocks and cores

2 Measure one rectangular core

3 Plan grout and bags

Results update automatically · volume is based on the entered rectangular core opening

Transparent calculation

Core geometry stays editable.

The estimator models each core as a rectangular opening, applies the selected fill percentage, adds waste once, and rounds bag quantities up. Manufacturer net core area remains the purchasing authority.

Open the verified methodology for formula provenance, assumptions, a worked example, and limitations.