Curb Profile Reference
| Profile | Dimensions | Yd³ per 100 ft | Use Case |
|---|---|---|---|
| Standard Curb | 6"×18" | 2.78 | Residential streets |
| Curb & Gutter | 6"×24" | 3.70 | Streets with drainage |
| Barrier Curb | 8"×18" | 3.70 | High-speed roads |
| Mountable Curb | 4"×12" | 1.23 | Driveways, parking lots |
| Extruded Curb | 6"×12" | 1.85 | Landscape edging |
Frequently Asked Questions
How much concrete do I need for a curb?+
Formula: (width in × height in ÷ 144) × length ft ÷ 27 = cubic yards. A 6×18" curb at 100 ft: (6×18÷144) × 100 ÷ 27 = 0.75 × 100 ÷ 27 = 2.78 yd³. Add 5% waste for curves and form adjustments.
What is the standard concrete curb size?+
Standard residential curbs are 6 inches wide × 18 inches tall. Curb-and-gutter adds a 12–18 inch horizontal gutter pan for drainage, totaling 6×24 to 6×30 inches. Municipal specs often specify 3,500 PSI concrete with air entrainment in freeze-thaw zones.
How much does concrete curbing cost?+
Contractor-installed poured concrete curbing runs $15–35 per linear foot. A 200-ft curb costs $3,000–7,000 installed. Decorative extruded landscape curbing (lawn edging) is $5–12 per linear foot. Material cost alone is $1–5 per linear foot — labor is the dominant cost.
What PSI concrete is used for curbs?+
Most highway and municipal specs require 3,500 PSI minimum. For cold-weather or high-traffic applications, use 4,000 PSI with 5–7% air entrainment to resist freeze-thaw spalling. Standard ready-mix ordered as '4000 PSI air-entrained' meets almost all curb applications.