How Much Decomposed Granite for a 10 Foot Circle?
How much decomposed granite for a 10 foot circle: about 1.0 tons at 3 inches deep. A circle 10 feet across covers about 78.5 square feet (3.1416 × 5²).
Volume and tonnage calculator →The math
- Area: 78.5 sq ft.
- Depth in feet: 3 ÷ 12 = 0.250 ft.
- Cubic yards: 78.5 × 0.250 ÷ 27 = 0.73 yd³.
- Tons: × about 1.35 tons per yard = 1.0 tons.
The gravel calculator does this for any size.
Related: How Much Gravel for a 10 Foot Circle?
Decomposed granite needed by depth
| Depth | Cubic yards | Tons of decomposed granite | Tons +10% |
|---|---|---|---|
| 2 in | 0.48 | 0.7 | 0.7 |
| 3 in | 0.73 | 1.0 | 1.1 |
| 4 in | 0.97 | 1.3 | 1.4 |
| 6 in | 1.45 | 2.0 | 2.2 |
Using a circle of stone
A round gravel area is easy to lay out with a stake and string at the center. Set flexible edging along the line and lay fabric inside before the stone goes in. Do not pile stone against tree trunks; leave a gap at the base.
Related: How Much Decomposed Granite for a 6 Foot Circle?
Ordering and delivery
Small dump trucks commonly carry around 5 to 10 tons and tri-axles more, but loads vary by truck and state, so ask the yard what fits in one trip. Decomposed granite packs into a firm, natural path when wetted and compacted in thin lifts. Round up by about 10 percent for compaction and uneven ground.
Measuring the area
Use a long tape and measure each side twice. If the ground slopes, measure depth at the high and low ends and average them. Irregular outlines can be broken into simple rectangles, triangles and circles; add the pieces for the total square footage before converting to tons.
Common mistakes
People often forget that compaction reduces volume, so they come up short. Others order clean, round stone where a packable crushed stone with fines would have stayed put. Finally, dumping the whole load in one pile far from the work area adds hours of wheelbarrow trips.
Questions people ask
How many tons of decomposed granite for a 10 ft circle?
About 1.0 tons at 3 inches deep.
How many square feet is a 10 foot circle?
About 78.5 square feet.
How many tons of decomposed granite are in a cubic yard?
Roughly 1.35 tons for planning, but suppliers vary with stone size and moisture.
Do I need to compact it?
Yes for anything that carries weight. Compact in lifts of a few inches with a plate compactor.
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