Masonry Sealer Calculator
Estimate masonry sealer volume and full containers for brick, block or stone surfaces after opening deductions, coats, coverage and porous-surface allowance.
Default project preview
2 containers
Net masonry area
550 ft²
Gross wall area
640 ft²
Net sealer volume
6.11 gal
Purchased volume
10 gal
Calculator
Build the material order
Your order will appear here
Enter the project details and calculate a rounded material estimate.
Methodology
Transparent calculation
BuildMeter converts every input to a consistent internal unit, applies the selected allowance, and rounds products up to whole purchasable units.
Net wall area = wall length × height − openings. Sealer volume = net area × coats ÷ coverage, plus allowance.
FAQ
Masonry Sealer Calculator questions
Why can masonry use more sealer than the label estimate?+
Open pores, textured joints and absorbent units can reduce actual coverage.
Should all masonry walls be sealed?+
Not automatically. The wall assembly must still manage moisture and vapor appropriately.
Are opening deductions always worthwhile?+
Large openings should be deducted; small interruptions may be offset by masking and application waste.