Find out how many bricks and how much mortar you need for a wall. Choose your brick size and joint width to get a count.
0bricks
| Item | Amount |
|---|---|
| Wall area (after openings) | |
| Bricks per square foot | |
| Mortar needed | |
| Mortar bags (80 lb) |
Each brick takes up its own size plus one mortar joint. The calculator finds how many of those fit in one square foot, then multiplies by your wall area.
Bricks per sq ft = 144 ÷ ((brick length + joint) × (brick height + joint))
Wall area is length × height, minus any doors or windows. Your breakage allowance is added on top, and the total is rounded up.
Mortar is the volume of the joints around each brick (the space from the brick size plus joint, minus the brick itself), times the brick depth, plus 25 percent for waste and uneven joints. It assumes an 80 lb bag yields about 0.6 cubic feet. Bag yields vary, so check the label, and treat this as a rough guide.
Sizes here are for a single-layer (single wythe) wall. For a double-thick wall, double the brick count.
With standard modular bricks and a 3/8 inch joint, you need about 6.9 bricks per square foot of wall. Other sizes and joint widths change that number, so use the calculator.
A 120 square foot wall with modular bricks, a 3/8 inch joint, and 5 percent extra needs about 864 bricks.
Five to ten percent is typical. Use the higher end for patterns with lots of cuts, such as curves or angles, and for jobs where matching a later batch of bricks would be hard.
Yes. A wider joint spreads the bricks out, so you need fewer of them but more mortar. The most common joint is 3/8 inch.
No. This is for brick walls. For patios, use the paver patio calculator.