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Brick Calculator

Estimate total bricks, bricks per row, masonry rows, wall area, mortar volume, and waste allowance for a rectangular brick wall.

Published

Total bricks needed

Bricks to order
1,067 bricks
Gross wall area
160.00 ft²
Net wall area
148.00 ft²
Bricks per row
29
Masonry rows
37
Approximate mortar volume
8.10 cu ft
Base bricks needed
970
Waste bricks
97

Uses net wall area and entered brick-plus-joint module dimensions. Mortar yield and field cuts vary by product and layout.

Unit of measurement
ft
ft
ft
ft
in
in
in
in
%

Results update as you type.

Worked example

unit: feet · wallLength: 20 · wallHeight: 8 · wallLengthM: 6 · wallHeightM: 2.4 · openingWidth: 3 · openingHeight: 4 · openingWidthM: 0.9144 · openingHeightM: 1.2192 · brickLength: 8 · brickHeight: 2.25 · brickDepth: 3.625 · mortarThickness: 0.375 · wastagePercentage: 10

Result: 1,067 bricks

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The brick calculator estimates total bricks, bricks per row, masonry rows, wall area, mortar volume, and waste allowance for a rectangular brick wall, so you can plan the purchase before you start.

Inputs and method

Enter gross wall dimensions, one rectangular opening in the selected wall unit, all three brick dimensions, mortar-joint thickness, and waste. The calculator subtracts the opening, divides net face area by the entered brick-and-joint module, then applies waste before the whole-brick purchase ceiling. Row counts use the gross wall geometry. Approximate mortar volume is net wall volume at the entered brick depth minus the unrounded brick volume.

Calculations retain full floating-point precision until the labeled display step. Counts and packages use an explicit upward ceiling only where a whole purchase unit is required.

Interpreting the estimate

Use the result as a planning value and keep input precision consistent with the measurements or source data you have. Small displayed differences can come from final-place rounding; intermediate values are not rounded.

Assumptions and limits

Openings beyond the single entered rectangle, bond pattern, cuts, breakage, mortar depth, and field yield require a project takeoff. Product dimensions and field conditions vary. For the concrete footing the wall sits on, use the concrete calculator; for metric mix quantities, see the concrete volume calculator; and to measure the wall area first, use the square footage calculator.

Empty or invalid inputs, prohibited negatives, zero denominators, impossible relationships, and unsupported options do not produce a potentially misleading numeric result.

Sources

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Frequently asked questions

How is the brick count estimated?
The calculator subtracts the single rectangular opening from the gross wall area, divides the net face area by the entered brick-and-joint module, and applies waste before the whole-brick purchase ceiling. Row counts use the gross wall geometry.
How is mortar volume estimated?
Approximate mortar volume is the net wall volume at the entered brick depth minus the unrounded brick volume. Product dimensions and field conditions vary, so treat the result as a planning value.
What inputs do I need to enter?
Enter gross wall dimensions, one rectangular opening in the selected wall unit, all three brick dimensions, mortar-joint thickness, and waste. Openings beyond the single entered rectangle, bond pattern, cuts, breakage, and mortar depth require a project takeoff.

Sources

  • brick-bia-technical-notes

    primary · Aug 10, 2026

    Supports: Brick Industry Association technical guidance on brick dimensions, mortar joints, and masonry practice behind the module-based count.

  • brick-irc-2021

    primary · Aug 10, 2026

    Supports: 2021 International Residential Code residential masonry requirements referenced for context; the worksheet renders no code-compliance conclusion.

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