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Quantity Of Standard Block Needed For Specified SQ / FT
Determine the Number of Courses
Height (Feet) ÷ .67 & round to the next whole number
- Add the total Linear Feet of walls to be blocked.
- Multiply the total Linear Feet by the Height of the building to determine Area to be blocked.
- Subtract the total square feet of all openings from the area.
- 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' x 10' = 500 SF
- 500 - 80 = 420
- 420 x 1.125 = 473 (Rounded up)
Calculating the Number of Block Quantity
Example: How many CF of mortar is needed to install 7600 Bricks? Wall thickness is 4" & the joint is 1/8".
- Go to 1/8" (Above)
- Follow across to 4" for your wall thickness.
- The multiplier is 2.9
- 7600 / 1000 = 7.6
- 2.9 X 7.6 = 22.04 CF of mortar.
Mortar for Standard Size Brick
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.
Identify the size of your mortar joint
- Find the number according to your brick size below.
- Multiply your number by the area for which you will be installing the brick.
- The result is the number of bricks you will require.
Calculating Quantity of Brick
- Add one side of the brick mortar joint to face the dimensions of the brick.
- Multiply the Length of the brick by the Height to find the face area. (Sq Inches)
- Divide 144 sq inches by the face area. (this is the multiplier - how many bricks you will need per sq. ft.)
- Calculate the area of space for installing brick - Remember to minus space for openings (Doors, Windows, Ect.)
- Multiply the area using the brick multiplier (Below).
- Add 5-10% for waste depending on the overall size of the job.
CALCULATING BRICK & TABLES FOR ESTIMATING BRICK QUANTITY