Calculating Brick & Tables for Estimating Brick Quantity

1. Add one side of the brick mortar joint to face the dimensions of the brick.
   
2. Multiply the Length of the brick by the Height to find the face area. (Sq Inches)
   
3. Divide 144 sq inches by the face area. (this is the multiplier - how many bricks you will need per sq. ft.)
   
4. Calculate the area of space for installing brick - Remember to minus space for openings (Doors, Windows, Ect.)
   
5. Multiply the area using the brick multiplier (Below).
   
6. Add 5-10% for waste depending on the overall size of the job

1. Find the number according to your brick size below.
   
2. Multiply your number by the area for which you will be installing the brick.
   
3. The result is the number of bricks you will require.

Example: Calculate the quantity of brick to be installed on 4000 sq/ft. You are installing a common brick with 1/4" joint. You will multiply 4000 x 7 to find that you will need 28,000 bricks.

1. Find the joint thickness.
   
2. Find the thickness of the wall.
   
3. Locate the multiplier that corresponds with step 1 & 2.
   
4. Divide the total amount of bricks you are installing by 1000.
   
5. Use the multiplier in step 3 and multiply the number from step 4. This will give you the CF of mortar needed.

Example: How many CF of mortar is needed to install 7600 Bricks? Wall thickness is 4" & the joint is 1/8".

1. Go to 1/8" (Above)
   
2. Follow across to 4" for your wall thickness.
   
3. The multiplier is 2.9
   
4. 7600 / 1000 = 7.6
   
5. 2.9 X 7.6 = 22.04 CF of mortar.

1. Add the total Linear Feet of walls to be blocked.
   
2. Multiply the total Linear Feet by the Height of the building to determine Area to be blocked.
   
3. Subtract the total square feet of all openings from the area.
   
4. Multiply the area by 1.125

Example: Calculate the block needed for a wall that is 50' long, 10' high, with 80 square feet of openings. 50' 50' x 10' = 500 SF 500 - 80 = 420 420 x 1.125 = 473 (Rounded up)

Determine the Number of Courses

Height (Feet) ÷ .67 & round to the next whole number

1. Add 3/8" Mortar joint to block dimensions =16" x 8"=128"
   
2. 16" x 8" = 128" (Face area of the block)
   
3. 144 / 128 = 1.125 (144 is the square foot) 1.125 Blocks per SF