Enter the wall area, brick size, and mortar joint size into the calculator to determine the number of bricks needed for your project. This calculator helps in estimating the quantity of bricks required to cover a specific wall area.

Brick Usage Formula

The following formula is used to calculate the number of bricks needed.

BN = \frac{WA}{(BS + MJ^2) / 144}

Variables:

  • BN is the number of bricks needed
  • WA is the wall area (square feet)
  • BS is the brick size (square inches)
  • MJ is the mortar joint size (inches)

To calculate the number of bricks needed, divide the wall area by the brick area (brick size plus the square of the mortar joint size, converted to square feet). Always round up to the nearest whole number to ensure you have enough bricks for your project.

What is Brick Usage?

Brick usage refers to the number of bricks required to construct a wall or structure of a given area. It is important for builders and contractors to accurately estimate the number of bricks needed to avoid shortages or excess material. Factors such as the size of the bricks, the thickness of the mortar joints, and the pattern of the brickwork can affect the total number of bricks required.

How to Calculate Brick Usage?

The following steps outline how to calculate the number of bricks needed for a wall.


  1. First, measure the wall area (WA) in square feet.
  2. Next, determine the size of the brick (BS) in square inches.
  3. Then, determine the size of the mortar joint (MJ) in inches.
  4. Use the formula from above to calculate the number of bricks needed (BN).
  5. Finally, round up to the nearest whole number to find the total bricks required.
  6. After inserting the variables and calculating the result, check your answer with the calculator above.

Example Problem : 

Use the following variables as an example problem to test your knowledge.

Wall area (WA) = 100 square feet

Brick size (BS) = 32 square inches

Mortar joint (MJ) = 0.375 inches