Curb and Gutter Concrete Calculator
Estimate the volume of concrete required for your curb and gutter project.
Calculation Results
How to Use the Curb and Gutter Calculator
Planning a residential driveway apron or a municipal street project requires precise concrete measurements. This calculator helps you determine the exact cubic yardage for standard "barrier" or "mountable" curb and gutter profiles.
Understanding the Dimensions
- Total Length: The linear distance of the curb project.
- Curb Height: The vertical distance from the top of the gutter to the top of the curb (commonly 6 inches).
- Curb Width: The thickness of the curb at its widest point.
- Gutter Width: The width of the horizontal apron where water flows (commonly 12 to 24 inches).
- Gutter Thickness: The depth of the concrete base in the gutter area.
The Calculation Formula
The total volume is calculated by finding the cross-sectional area of two rectangles: the curb above the gutter and the full width of the base (gutter + curb thickness).
Area = [(Curb Height * Curb Width) + ((Gutter Width + Curb Width) * Gutter Thickness)] / 144
Volume (CY) = (Area * Length) / 27
Example Calculation
Suppose you are installing 50 feet of standard curb and gutter. The curb is 6″ high and 6″ wide. The gutter is 18″ wide and 6″ thick.
- Curb Section: 6″ x 6″ = 36 sq in
- Gutter/Base Section: (18″ + 6″) * 6″ = 144 sq in
- Total Area: 180 sq in / 144 = 1.25 sq ft
- Cubic Feet: 1.25 sq ft * 50 ft = 62.5 cu ft
- Cubic Yards: 62.5 / 27 = 2.31 Cubic Yards