Prices for decomposed granite (DG) vary by material quality, delivery distance, and installation requirements. The cost generally reflects material cost, delivery, base preparation, and compaction. This article outlines typical price ranges and the main drivers behind cost variations, to help buyers estimate a DG project accurately.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| Decomposed Granite Material | $25/yd3 | $40/yd3 | $60/yd3 | Depends on color, rock particle size, and whether it’s stabilized DG |
| Delivery/Hauling | $60 | $90 | $150 | Per load; distance and truck size affect cost |
| Base/Sub-base Preparation | $0.50/yd3 | $3.00/yd3 | $6.00/yd3 | May include base rock, geotextile, or soil modification |
| Installation & Compaction | $2.00/yd3 | $5.00/yd3 | $9.00/yd3 | Labor for spreading and compaction to target thickness |
| Permits/Taxes | $0 | $20 | $100 | Depends on local rules and project scope |
| Subtotal Typical Installed Cost | $87 | $155 | $325 | Assumes 2-inch depth over 100 yd2 area; varies by region |
Overview Of Costs
Cost ranges for DG projects include material, delivery, base prep, and installation. This overview provides total project ranges and per-unit ranges with brief assumptions to help gauge a typical scope. DG is often installed at a 2-inch to 3-inch depth for pathways or driveways, with stabilization optional in high-traffic areas.
Cost Breakdown
DG projects involve several cost components that directly impact the bottom line. The following table summarizes common cost categories and typical ranges. Assumptions: region, project size, and depth of installation.
| Category | Low | Average | High | Notes |
|---|---|---|---|---|
| Materials | $25/yd3 | $40/yd3 | $60/yd3 | |
| Delivery/Haulage | $60 | $90 | $150 | |
| Base/Prep | $0.50/yd3 | $3.00/yd3 | $6.00/yd3 | |
| Labor & Installation | $2.00/yd3 | $5.00/yd3 | $9.00/yd3 | |
| Permits/Taxes | $0 | $20 | $100 | |
| Subtotal | See notes | See notes | See notes |
Pricing Variables
Regional price differences can be substantial. Prices tend to be higher in metropolitan areas and coastal regions due to delivery costs and demand. In Rural regions, DG material can be cheaper, but delivery may still drive up costs if suppliers are far away. Expect typical regional deltas of ±15% to ±30% from national averages.
What Drives Price
Several variables determine the final price. Material quality and color options influence unit costs, while depth of installation and required base preparation affect labor and materials. For stabilized DG, expect higher material costs but less maintenance over time. The project’s grading, slope, and drainage needs can also change both base and labor costs.
Labor, Hours & Rates
Labor costs reflect crew size and hours needed to spread and compact DG to the specified depth. In general, labor may range from $2.00 to $9.00 per yd3, with larger or more complex jobs increasing the per-yard labor rate. Contractors may charge by the square foot for labor rather than by volume in some markets. data-formula=”labor_hours × hourly_rate”>
Ways To Save
Cost-conscious approaches can reduce overall project price without sacrificing performance. Buy material in bulk and plan for off-peak delivery to lower per-yard material and delivery costs. If a lighter surface is acceptable, using an un-stabilized DG with a simple base can be cheaper than stabilized options. Also, combining DG projects with neighboring projects can reduce per-delivery costs.
Regional Price Differences
Three regional snapshots illustrate typical deltas. Urban markets often see higher material premiums and delivery fees, +10% to +25% versus national averages. Suburban regions usually align with national ranges plus modest delivery costs. Rural areas can offer lower material prices but may incur higher delivery charges if suppliers are far away, ranging from -5% to +20% relative to urban centers.
Real-World Pricing Examples
Three scenario cards show practical installations with differing scopes. Assumptions: 2-inch depth, 100 square feet area, no stabilization.
- Basic — Materials: $40/yd3, Delivery: $90, Base/Prep: $2/yd3, Labor: $4/yd3; Total: approximately $100–$180 for a small 100 sq ft project; 0.62 yd3 required.
- Mid-Range — Materials: $45/yd3, Delivery: $110, Base/Prep: $4/yd3, Labor: $6/yd3; Total: approximately $180–$300; 0.62 yd3 required; stabilization adds $8–$12/yd3.
- Premium — Materials: $60/yd3, Delivery: $150, Base/Prep: $6/yd3, Labor: $9/yd3; Total: approximately $260–$420; stabilization adds $12–$20/yd3.
Assumptions: region, specs, labor hours.
What To Ask For When Getting Quotes
To compare bids accurately, request a detailed breakdown that mirrors the Cost Breakdown table. Ensure quotes specify material type, depth, delivery distance, base preparation, and whether stabilization is included. Ask for per-yard and total project prices, and confirm whether taxes or permits are included or extra.
Maintenance & Ownership Costs
DG surfaces typically require periodic replenishment and occasional raking to maintain evenness. Maintenance costs are often lower than initial installation in stabilized systems, but recurring material replenishment may be necessary every 3–7 years depending on traffic and climate. Factor long-term costs into budgeting and 5-year cost outlooks.
