Measure wall areas, openings, courses, and bond assumptions. Review brick counts, mortar volume, and cost. Build faster estimates for homes, sheds, partitions, and facades.
| Scenario | Wall Size | Thickness | Openings | Brick Size | Mortar Ratio | Wastage |
|---|---|---|---|---|---|---|
| Boundary Wall | 12 m × 2.4 m × 2 walls | 0.23 m | 1.20 m² | 190 × 90 × 90 mm | 1:6 | 5% |
| Room Partition | 4 m × 3 m × 3 walls | 0.115 m | 2.10 m² | 190 × 90 × 90 mm | 1:5 | 7% |
| Garage Wall | 6 m × 3.2 m × 4 walls | 0.23 m | 5.60 m² | 200 × 100 × 100 mm | 1:6 | 6% |
Gross Wall Area = Wall Length × Wall Height × Number of Walls
This gives the total visible wall face before deducting doors, windows, or other openings.
Net Wall Area = Gross Wall Area − Opening Area
This removes non-brick zones so the estimate reflects only the actual brickwork surface.
Net Volume = Net Wall Area × Wall Thickness
This converts surface area into masonry volume, which is the main basis for brick and mortar estimation.
Brick Count = Net Volume ÷ Nominal Brick Volume
Final Brick Count = Brick Count × (1 + Wastage%)
Nominal brick volume includes mortar joint thickness, giving a realistic count for laid masonry.
Wet Mortar Volume = Net Volume − Installed Brick Volume
Dry Mortar Volume = Wet Mortar Volume × Dry Volume Factor
The dry factor accounts for bulking, handling, and field losses during mixing.
Cement Volume = Dry Mortar × Cement Part ÷ Total Parts
Sand Volume = Dry Mortar × Sand Part ÷ Total Parts
Cement Bags = (Cement Volume × Density) ÷ Bag Weight
Total Cost = Brick Cost + Cement Cost + Sand Cost + Labor Cost
This combines major direct material and workmanship costs into one project estimate.
It estimates net brickwork volume, brick quantity, mortar volume, cement bags, sand volume, and total direct cost. It also adjusts for openings and wastage, making it useful for preliminary planning, procurement checks, and budget discussions before site work begins.
Doors, windows, and similar voids do not require bricks or mortar. Deducting their area improves accuracy and prevents over-ordering materials. For mixed wall conditions, sum every opening first and enter the combined area in one value.
Nominal volume includes the brick size plus mortar joint allowance. It reflects the space occupied by one laid unit within the wall, which makes brick counting more realistic than using actual brick size alone.
Bricks can break during loading, transport, handling, cutting, and laying. Wastage also covers minor site errors and quality rejection. A small allowance helps avoid shortages that can delay work or create repeated purchasing trips.
Use the actual design thickness from drawings or site specifications. Common values include half-brick, one-brick, and thicker structural walls. Accurate thickness is essential because wall volume changes directly with thickness, affecting every quantity result.
No. This tool focuses on brick masonry quantities and direct brickwork-related costs. Plaster, paint, reinforcement, lintels, scaffolding, curing water, and contractor overheads should be estimated separately when preparing a more complete project budget.
Yes. Change the cement and sand ratio fields to match your specification, such as 1:4, 1:5, or 1:6. The calculator automatically redistributes mortar constituents and updates cement bag and sand volume results.
It is best for planning, comparison, and quick checking. Final procurement should still confirm design details, local codes, workmanship standards, actual brick sizes, supplier rates, and engineer-approved specifications before material ordering.
Important Note: All the Calculators listed in this site are for educational purpose only and we do not guarentee the accuracy of results. Please do consult with other sources as well.