To properly calculate your curb and gutter, you should multiply the total cross-sectional area by the total run length, the divide by 27 to get the cubic yards.

Standard Dimensions

• Commercial Curb and Gutter: Commercial curb and gutter vary widely depending on the engineer plans and municipal needs. Generally, you will see curb at 6 to 12 inches above the gutter, with a 6 to 8 in thick pan (gutter), all while being generally 24 inches wide. Commercial curb and gutter is very important to get right because this is where most drainage is happening and could potentially get high traffic.
• Residential Driveway: While homeowners generally don’t put curbing on their driveways, you can see an average of 6 inches above pavement. It is still very important to give your residential curb a strong footing because this thin strip of concrete will be the first to break apart due to erosion or wear.

Should I bag or order from a concrete company?

Generally, you would want to order your curb mixture from a company, unless you have experience working with concrete. Curb mix tends to be thicker for easier shaping of the traditional curb formation.

Related calculators: Concrete Slab, Concrete Driveway, Concrete Stairs

Curb and gutter is critical to keeping traffic contained on a surface and ensuring proper water drainage. Getting the right measurements is key to making sure all of this “flows” along with your project.