Patio Gravel Calculator
Calculate aggregate for outdoor living patios, fire pit seating areas, and interlocking paver subbases in cubic yards, tons, and bags.
1Project Shape & Dimensions
2Gravel Type & Density
A blend of crushed stone (up to 3/4") and fine stone dust. Compacts into a solid, nearly impermeable base that resists rutting and washouts.
3Gravel Depth & Compaction
Accounts for roller compaction settlement, uneven ground contours, and wheelbarrow spill.
Material & Delivery Cost Estimator
- Bulk delivery dump trucks usually require a 10–12 ft wide clearance path.
- Always verify if your quarry quotes in Tons or Cubic Yards.
- Order ~10% extra to prevent having to pay a second delivery fee for a half-ton deficit.
Common Patio Sizing & Gravel Requirements (4" Base)
| Patio Size | Square Feet | Cubic Yards (10% waste) | Crusher Run Base (Tons) | 0.5 ft³ Bags |
|---|---|---|---|---|
| 10 × 12 ft (Bistro Patio) | 120 sq ft | 1.63 yd³ | ~2.53 US Tons | 88 bags |
| 12 × 16 ft (Dining Patio) | 192 sq ft | 2.61 yd³ | ~4.05 US Tons | 141 bags |
| 15 × 20 ft (Full Living Area) | 300 sq ft | 4.07 yd³ | ~6.31 US Tons | 220 bags |
Patio FAQs
Q: How deep should gravel be for a loose gravel patio?
A standalone gravel patio (surrounded by steel, stone, or timber edging) should have a total depth of 4 to 5 inches: a 2 to 3-inch compacted subbase of Crusher Run topped with 2 inches of decorative pea gravel or crushed stone.
Q: How much gravel base is needed for a paver stone patio?
For standard pedestrian paver patios, excavate 7 to 8 inches: install 4 to 6 inches of compacted Crusher Run / road base aggregate, followed by a 1-inch bedding layer of coarse sand or #8 stone chips before laying the pavers.
Q: What is the best gravel for patio furniture?
Crushed granite, decomposed granite (with binder), or #8 stone chip provides the best stability for patio chairs and tables because the stones pack flat. Smooth pea gravel allows chair legs to sink in slightly unless plastic gravel stabilization grids (such as CORE Gravel) are installed.