- Multiply the length by the width of the desired patio area to obtain the total square feet.
- Multiply the length by the width of the brick you plan to use. A standard brick is 4 inches by 8 inches, or 32 square inches. Add 1/2-inch to the length and width measurement before multiplying if you plan to use mortar between the bricks.
- Divide 144, the number of square inches in one square foot, by the square inches of the brick to determine the number of bricks needed to cover 1 square foot of patio surface. For the standard brick size of 32 square inches, 4.5 bricks are needed to cover 1 square foot of patio.
- Multiply the number of bricks needed to cover 1 square foot by the number of square feet in the patio. A patio measuring 15 by 20 has 300 square feet of surface area and, using the standard brick size, will require 1,350 bricks.
How to Calculate Red Bricks for a Patio
Contractors and homeowners traditionally use red brick pavers to create warm and inviting patios because brick is a long-lasting, durable building material that is manufactured in a wide variety of sizes, shapes and colors. Calculating the number of bricks needed for your project requires only a little measuring and basic multiplication. Determine the bricks needed and create a stunning focal point in your back yard with a red brick patio.