Brick Quantity Calculator
Calculate how many bricks a wall needs: enter wall length, height and thickness, brick size and mortar joint, and get the brick count with a wastage allowance.
| Item | Value | Detail |
|---|---|---|
| Enter the wall details and press Calculate Bricks to see the breakdown. | ||
How to use it
- Measure the wall length and height in feet, then choose the wall thickness: 4.5 inch for single brick partition walls or 9 inch for double brick external walls.
- Deduct the area of doors and windows by entering their total area in square feet, so you do not buy extra bricks.
- The tool adds the mortar joint to the brick length and height to get the nominal brick size, then divides the wall volume by it.
- For single brick walls the brick is laid flat with its 9 inch face along the wall; for double brick walls two rows make the 9 inch thickness.
- A 5 percent wastage allowance covers breakage during transport and cutting on site.
Frequently Asked Questions (FAQ)
How does the brick quantity calculator work?
Enter the wall length, height and thickness, then choose your brick size and mortar joint thickness. The tool divides the total wall volume by the nominal brick volume, including the mortar joint, and adds your wastage allowance to give the final brick count.
What is the standard brick size in Pakistan?
The common Pakistani brick is 9 inches long, 4.5 inches wide and 3 inches high. The calculator includes this size as a preset, along with 9 x 4.5 x 2.5 inch and metric 190 x 90 x 90 mm options.
What is a single brick and double brick wall?
A single brick wall is 4.5 inches thick and is used for partition walls and ordinary rooms. A double brick wall is 9 inches thick and is used for external and load-bearing walls. The calculator offers both presets.
How much mortar does a brick wall need?
The tool estimates mortar as the wall volume minus the net volume of the bricks, multiplied by a dry factor. It shows the approximate mortar volume in cubic feet, which you can use to estimate the cement and sand for the wall.
Why is wastage allowance important for bricks?
Bricks break during transport, handling and cutting, and mortar joints vary on site. A 5 percent wastage allowance is standard so the site does not run short of bricks halfway through the wall.