Estimate mortar-aware brick quantity for one or multiple walls, subtract doors and windows, add cutting waste, calculate pallets, and optionally estimate modular mortar volume and material cost.
Wall sections are normalized and summed before door, window, and other deductions produce net wall area.
Net area is divided by the user-entered brick module—physical face dimensions plus joint width. Brick waste is then applied to count once and the purchase quantity rounds upward.
sum(length × height × quantity)gross area − opening and other deductions(user-entered brick length + joint) × (user-entered brick height + joint)ceiling(net area ÷ module area × (1 + waste percentage ÷ 100))ceiling(bricks to buy ÷ bricks per pallet)base installed bricks × (module volume − brick volume) × (1 + mortar extra percentage ÷ 100)A 20 × 8 ft wall is 160 ft². With user-entered 8 × 2.25 in brick dimensions and a 3/8 in joint, the module is 8.375 × 2.625 in. The exact base count is about 1,048.02; with 10% waste, buy 1,153 bricks.
A 30 × 9 ft wall is 270 ft². A 15 ft² window leaves 255 ft². With the same user-entered module and 10% waste, the exact base count is about 1,670.28 and the purchase estimate is 1,838 bricks.
A 25 m² wall with user-entered 215 × 65 mm brick dimensions and 10 mm joints uses a 225 × 75 mm module. Base count is about 1,481.48; with 10% waste, buy 1,630 bricks.
Brick dimensions, joint widths, openings, and pallet quantities vary. Enter the physical brick dimensions and project joint used for this estimate.
Bond pattern can change edge cuts and reuse, but no universal automatic waste adjustment is applied.
The optional result is a simplified modular volume, not a mix design or manufacturer bag guarantee.
The calculator treats the entered brick length and height as physical face dimensions. It adds the entered joint width once in each direction to form the estimating module.
Brick sizes and modular coordination vary. The calculator does not silently substitute a nominal size or a standard joint.
Each opening uses entered width, height, and quantity. Total deductions must remain smaller than gross area.
The optional one-wall layout assumes straight courses, a rectangular wall, full-brick rounding, no openings, no bond offset optimization, and no cut reuse. It is not the sole purchase estimate.
The optional single-wythe model subtracts brick physical volume from module volume. Joint intersections, edge conditions, bond, mixing loss, and real masonry practice can change actual mortar use.
Brick cost supports piece, pallet, or net-area pricing. Optional mortar-bag cost uses user-entered yield. Labor, delivery, scaffolding, foundations, reinforcement, ties, flashing, and taxes are excluded.
Divide net wall area by the brick-plus-joint module area produced from your inputs, apply waste once, and round upward.
Divide one square foot by module area converted to square feet.
A wider entered module covers more wall area per brick position, reducing the modular count.
Subtract openings that will not receive brick using their measured dimensions and quantities.
Cuts, breakage, bond, edges, and reuse vary; choose an appropriate editable allowance.
There is no universal count. Enter the supplier package quantity.
Yes. Add its rectangular face as a wall section.
It may affect cuts and reuse, but this calculator does not automatically change waste by pattern.
The optional simplified model compares brick physical volume with its modular wall volume.
Yes, only when you supply yield per bag; no universal yield is assumed.
Yes. Metric mode supports meters, millimeters, square meters, liters, and cubic meters.
No. Optional estimates cover entered brick and mortar materials only.
Brick Industry Association guidance explains wall-area estimating and why brick dimensions and joint width both matter when determining masonry-unit coverage.