Decomposed granite (DG) is a popular hardscape option for pathways, driveways, and patios. This article focuses on cost estimates in USD, with low–average–high ranges and the main cost drivers that influence pricing.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| Materials (DG aggregates) | $0.50/sq ft | $1.50/sq ft | $3.50/sq ft | Uncompacted, bagged or bulk DG, 2–3 inch depth |
| Delivery & Dump Fees | $50 | $150 | $400 | Distance-based; larger loads cheaper per ton |
| Labor & Installation | $1.50/sq ft | $3.50/sq ft | $6.00/sq ft | Base prep, edging, compaction |
| Base & Edging Materials | $0.30/sq ft | $0.90/sq ft | $2.50/sq ft | Crushed rock, geotextile, edging |
| Compaction & Equipment | $0.20/sq ft | $0.60/sq ft | $1.50/sq ft | Plate compactor rental or crew time |
| Permits & Inspections | $10 | $50 | $150 | Region-dependent |
| Maintenance & Longevity | $0.10/sq ft/yr | $0.25/sq ft/yr | $0.50/sq ft/yr | Weed control, top-up DG |
| Total Project Range (per sq ft) | $2.60 | $6.75 | $16.60 | Assumes 2–3 inch depth and typical edging |
| Total Project Range (per 100 sq ft) | $260 | $675 | $1,660 | Materials + labor + base + delivery |
Assumptions: region, specs, labor hours.
Overview Of Costs
Typical price range for installed decomposed granite is commonly quoted as $2.50-$5.50 per square foot, with variations driven by depth, base quality, edging, and accessibility. For larger areas, contractors may present a per-ton rate for DG material plus delivery, commonly around $25-$45 per ton, depending on supplier and location. Total project costs can also reflect local labor rates and permit requirements. The main cost levers are material quantity, base preparation, and site access.
Cost Breakdown
The following table details how a DG project costs break down, including a mix of total amounts and per-unit pricing.
| Category | Low | Average | High | Notes |
|---|---|---|---|---|
| Materials | $0.50/sq ft | $1.50/sq ft | $3.50/sq ft | DG aggregate, color options |
| Labor | $1.50/sq ft | $3.50/sq ft | $6.00/sq ft | Site prep, spreading, and compaction |
| Base Materials | $0.30/sq ft | $0.90/sq ft | $2.50/sq ft | Crushed rock, geotextile fabric |
| Delivery | $50 | $150 | $400 | Distance-based pricing |
| Edge Restraints | $1.00/linear ft | $2.50/linear ft | $5.00/linear ft | Metal, plastic, or timber edging |
| Permits | $10 | $50 | $150 | Local rules vary |
| Contingency | 5% | 10% | 15% | Unforeseen site issues |
| Taxes | Varies | Varies | Varies | State/local rates |
| Total (per sq ft) | $2.60 | $6.75 | $16.60 | Assumes 2–3 inch depth |
Assumptions: regional delivery constraints, site accessibility, and edging type.
Factors That Affect Price
Key drivers include depth of DG, base preparation, and site accessibility. Deeper installations increase material and compaction costs, while a poor underlying base requires more labor and base material to ensure stability. Color or texture variants can add to the per-unit price, and the choice of edging impacts upfront and ongoing maintenance costs. In addition, the cost of DG can shift with fuel prices and regional supplier availability.
Cost Drivers
Two niche-specific drivers frequently impact bids: base depth and edge type. For a 2-inch DG application on a flat area, materials and labor typically align with the average range. If the project requires a 4-inch depth for stability or vehicle traffic, material quantities and base components rise significantly. Edge restraints (metal or timber) also affect total costs, particularly for long or irregular borders.
Ways To Save
Use bulk DG and plan delivery to minimize trips. Ordering by the full load reduces per-ton delivery charges and avoids multiple small shipments. Combining DG with compatible base materials, like crushed rock, in one order can cut overall transport costs. Prepare the site to reduce labor time: clear weeds, trim vegetation, and install edging after the base is compacted to avoid rework. Consider DIY installation for smaller areas to reduce crew costs, while ensuring compaction is adequate for stability.
Regional Price Differences
Prices vary by region, with typical deltas of +/- 15-25% between markets. In the Northeast, higher labor rates and permitting can push installed DG costs toward the top of the range. The Southwest and California often have competitive material costs but may incur higher delivery fees due to distance from suppliers. Rural areas may see lower labor costs but higher transport charges per mile. These regional differences influence both total bids and per-square-foot estimates.
Real-World Pricing Examples
Sample scenarios show how area, depth, and edging affect outcomes.
- Basic: 120 sq ft patio, 2 inches DG, simple plastic edging, standard base. Materials $0.90/sq ft, Labor $2.80/sq ft, Delivery $120. Total around $1,680.
- Mid-Range: 350 sq ft walkway, 2.5 inches DG, geotextile fabric, compacted base with minor edging. Materials $1.30/sq ft, Labor $3.40/sq ft, Edging $2.50/ft, Delivery $240. Total around $3,900.
- Premium: 800 sq ft drive path, 3 inches DG, custom edging, reinforced base, weed barrier, professional grading. Materials $2.50/sq ft, Labor $5.50/sq ft, Edging $5.00/ft, Delivery $360. Total around $9,000.
Assumptions: area, depth, edging type, and local labor rates.