Calculator

Brick Calculator

Count modular bricks for a single wythe with a 3/8 inch mortar joint.

Your inputs

ft²

Modular bricks

685.7

A modular brick is 7.625 by 2.25 inches. A 3/8 inch joint makes the face with mortar 8 by 2.625 inches.

Bricks
685.7
Order
686

Formula

The face that includes the joint is 21 square inches:

bricks = wall area × 144 / 21

144 converts the wall from square feet to square inches. The result is the exact face count. The order stat rounds up.

Assumptions

  • The brick is the modular size, 7-5/8 by 2-1/4 by 3-5/8 inches.
  • The joint is 3/8 inch.
  • The wall is one wythe in running bond.

Worked example

100 square feet of modular brick is 685.7 bricks.

Input definitions

Wythe
One thickness of brick. A double wall is not included.
Face with joint
Brick length plus one head joint, times brick height plus one bed joint.

Limitations

Openings, corners, and a different brick size are not deducted or added. Mortar volume is a separate page.

Questions

Why 21 square inches?

8 inches times 2.625 inches is 21. That is the modular brick plus a 3/8 inch joint on the length and the height.

Does this include mortar?

Only as the joint size that spaces the bricks. The mortar page estimates the cubic feet.

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