Calculate exact brick quantities, mortar mix bags, masonry sand volume, and joint allowances for walls, veneers, and paving patios.
Specify wall run, openings, brick sizing, and mortar joint thickness
405 Base Bricks + 41 (10% Cut Waste) • 60 sq ft Net Area
80 lb Type N/S premix
~0.60 US Tons
Nominal 8" x 2-2/3" face
~500 bricks per cube
Bricks & mortar mix combined
A standard modular brick is 7-5/8" long by 2-1/4" high. When laid with a 3/8" mortar joint, its nominal modular size becomes exactly 8" x 2-2/3". Calculating bricks without adding mortar joint thickness results in ordering 20% to 25% too many bricks.
Masons often calculate bricks correctly but run out of mortar mix halfway through the job. Standard rules dictate approximately one 80-lb mortar bag per 30-35 modular bricks. Our tool synchronizes mortar and sand requirements directly with your brick count.
Under-ordering bricks forces you to order supplementary pallets weeks later. Because brick clay colors vary across kiln firing runs, the new bricks may display an unsightly color clash on your finished facade. Factoring a 10% buffer eliminates this hazard.
Veneer siding requires a single wythe (6.75 bricks/sq ft), whereas historical structural brickwork requires two parallel wythes tied with headers (13.5 bricks/sq ft). Our calculator prevents doubling your material shortfalls on solid brick walls.
Input length and height. Subtract the area of windows, doors, and large penetrations to find net square footage.
Select Modular, Standard, King, Queen, or custom sizing, along with mortar joint width (typically 3/8-inch).
Choose single wythe for residential veneers or double wythe for freestanding structural garden walls.
Check total bricks with waste, 80-lb mortar bags, bulk sand volume, complete pallets (cubes), and total budget.
The Brick Industry Association (BIA) specifies modular masonry based on a 4-inch modular grid ($M = 4\text{ inches}$). In modular running bond, three vertical brick courses plus their three 3/8-inch bed joints equal exactly 8 inches in height ($3 \times 2.67'' = 8''$), matching standard concrete masonry unit (CMU) backing block heights.
Formulated with 1 part Portland cement, 1 part hydrated lime, and 6 parts sand (~750 psi compressive strength). Ideal for above-grade exterior veneer and chimneys with optimal flexibility.
High-strength formula (~1,800 psi compressive strength) used for below-grade foundations, earth-retaining walls, brick sewers, and seismic regions requiring high lateral tensile bond strength.
Pre-loaded dimensions for Modular, Standard, Queen, King, Closure, Roman, Norman, and Utility brick formats.
Calculates net mortar paste volume based on standard 3/8-inch bedding and head joints with customizable joint thicknesses.
Converts masonry wall area into required 80-lb pre-mix mortar bags and bulk masonry sand tonnage.
Supports single veneer residential facades and multi-wythe structural brick masonry walls with customizable waste margins.
For standard modular bricks (7-5/8" long x 2-1/4" high) with standard 3/8-inch mortar joints, nominal face dimensions are 8" x 2-2/3". This yields approximately 6.75 bricks per square foot for a single-wythe wall. For double-wythe solid walls, you need 13.5 bricks per square foot.
As an industry standard rule of thumb, one 80-pound bag of premixed masonry mortar lays approximately 30 to 35 standard modular bricks with 3/8" joints. Therefore, you need about 3 bags per 100 bricks, or 28 to 33 bags of mortar per 1,000 bricks.
A single wythe wall consists of a single vertical layer of bricks (commonly used as an exterior cladding or veneer over wood/steel studs or concrete block). A double wythe wall consists of two parallel vertical layers of masonry tied together, used in historical load-bearing brick construction.
For standard running bond rectangular walls, add 5% for cutting and breakage. For complex architectural layouts with numerous windows, arches, gable angles, or herringbone patterns, add 10% to 15% extra bricks to ensure uniform kiln batch color consistency.
Type N mortar (medium strength ~750 psi) is the universal standard for exterior and interior non-load-bearing brick veneer and chimneys. Type S mortar (high strength ~1,800 psi) is recommended for below-grade foundations, retaining walls, and high-wind or seismic structural applications.
