Gravel Driveway Calculator
Two-layer crushed-stone driveway — base + surface tonnage by depth + area, excavation, geotextile, edge restraint, and crew labor.
Residential standard: 10-12 ft
4-6 in standard
2-4 in standard
Strip topsoil + accommodate base+surface
$300-600 for clay/soft subgrade
4×4 PT or pipe at perimeter
100-200 sf/hr typical
Result
- Area
- 600 sq ft
- Base (4 in #2)
- 10.0 tons · $320
- Surface (3 in #411)
- 7.5 tons · $270
- Excavation
- 13.0 yd³ · $843
- Fabric
- —
- Edge restraint
- —
- Material total
- $1,433
- Labor
- 4.0 hr · $340
- Total installed
- $1,773
- Effective $ / sq ft
- $3
This estimate is based on national average costs and may vary by region, project specifics, and market conditions. Use as a starting point for your bids.
Two-layer gravel driveway construction
Base layer = angular crushed stone (4-6 in #2 or #57) for structure and drainage. Surface layer = crusher run (2-4 in #411 / 21AA) with fines that pack down for a firm finish. Always two layers — single-layer driveways fail within a year.
Stone selection
| Layer | Stone type | Best for |
|---|---|---|
| Base | #2 crushed (1.5-2.5 in) | Best drainage, locks together |
| Base | #57 crushed (0.5-1 in) | Alternate base, smaller equipment |
| Base | RAP (recycled asphalt) | Budget option, oily binders help cohesion |
| Surface | #411 / 21AA crusher run | Standard. Fines pack, firm finish. |
| Surface | Decorative (river rock, marble) | Aesthetic only, NOT functional |
Pricing benchmarks (delivered + installed)
- New construction: $1.50-3.50 per sq ft
- Top-dress existing: $0.75-1.50 per sq ft
- #2 crushed stone delivered: $28-40 per ton
- #411 crusher run delivered: $30-45 per ton
- Recycled asphalt (RAP): $18-30 per ton (budget option)
Maintenance schedule
- Year 1-2: minor grading, fill ruts
- Every 2-3 years: 1-inch top-dress with crusher run
- Every 5-7 years: grade restoration + 2-inch top-dress
- Year 15-20: full re-base + re-surface
Frequently asked questions
How many tons of gravel for a driveway?
Volume × density ÷ 2000. Crushed stone runs ~100 lb/ft³ compacted. A 12 × 50 ft driveway with 4 in base + 3 in surface = 600 sq ft × 7 in ÷ 12 = 350 ft³ → 17.5 tons total (~10 tons base + ~7.5 tons surface).
Single layer or two layers?
Two layers always for driveways. Base layer (#2 crushed, 4-6 in) provides structure and drainage. Surface layer (#411 / 21AA crusher run, 2-4 in) provides the finish surface — fines pack down and stay put. Single-layer of just surface stone shifts under tires; single-layer of just base feels like driving on cobbles.
Pea gravel for a driveway?
Don't. Pea gravel is rounded, so tires displace it constantly — you'll have ruts in 2 months and the gravel migrates off the driveway into the yard. Pea gravel is for decorative borders, walkways, or under-deck splash zones. Driveways need angular crushed stone that locks together.
How long does a gravel driveway last?
10-15 years with annual top-dressing (1-inch refresh every 2-3 years), 20+ years with edge restraint. Without maintenance, ruts form within 3-5 years and the driveway needs full re-grade + re-stone. The cheapest version of asphalt or concrete still beats a gravel driveway on TCO if you'll stay in the house 20+ years.
How much does a gravel driveway cost?
$1.50-3.50 per sq ft installed for new construction (excavate, base, surface). $0.75-1.50 per sq ft for top-dressing an existing driveway. Per ton delivered: #2 crushed ~$28-40, #411 crusher run ~$30-45, decorative gravels $80-200+ per ton. Most variance is in access (rural delivery costs more) and excavation depth.
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