Gravel guide
Gravel Driveway Depth Guide
Gravel depth depends on the project type, soil conditions, traffic level, and whether the gravel is being used as a finished surface or as a base layer.
Common Gravel Depths
| Project | Recommended Depth |
|---|---|
| Garden path | 2–3 inches |
| Decorative gravel | 2–3 inches |
| Patio or paver base | 4 inches |
| Driveway top layer | 4–6 inches |
| Heavy vehicle area | 6–8 inches |
| RV pad | 8+ inches |
Why Gravel Depth Matters
Shallow gravel may shift, rut, or expose the ground underneath. Deeper gravel provides better support, drainage, and durability, especially for vehicles or soft soil.
How Depth Changes Gravel Volume
Increasing depth increases volume quickly. A 20 × 20 ft area at 4 inches deep needs about 4.94 cubic yards. At 6 inches deep, it needs about 7.41 cubic yards.
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Enter your area size and depth into the gravel calculator.
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