Calculate mortar sand, cement bags, and brick quantities for single or double brick walls with 10mm joints.
Shows the 10mm mortar bedding joint volume deducting brick displacement.
Shows the 10mm mortar bedding joint volume deducting brick displacement.
Mathematical formulas and engineering constants powering this calculator.
Net mortar volume after subtracting the solid brick body volume.
Standard modular brick rule (500 bricks per m³ of finished masonry).
Calculates sand tonnes required for masonry mortar batches.
In standard brickwork, bricks occupy approximately 70–75% of the total wall volume, while mortar joints (10mm thick) occupy the remaining 25–30%.
1 cubic meter of brick masonry typically requires approximately 500 modular bricks and 0.25 to 0.30 m³ of sand.
Masonry mortar formulas, brick consumption per square foot, and joint sand math.
For standard modular bricks with 10mm (3/8") mortar joints: 1,000 bricks require approximately 0.55 to 0.60 m³ (20 to 22 CFT / 0.75 to 0.85 tons) of sand and 4.5 to 5 bags of cement (50 kg) in a 1:5 mortar mix.
In standard masonry construction, solid bricks occupy approximately 70% to 75% of the total wall volume, while the 10mm bedding and perpend joints occupy the remaining 25% to 30% as mortar.
• 1 cubic meter of brickwork: Contains approximately 500 standard modular bricks.
• 100 sq ft of single-brick wall (4.5"): Requires approx 500 bricks.
• 100 sq ft of double-brick wall (9"): Requires approx 1,000 bricks.
Use a 1:4 cement-to-sand mix for exterior load-bearing walls, foundations, and parapets exposed to weather. Use a 1:5 or 1:6 mix for interior non-load-bearing partition walls.