How Much Decomposed Granite for an 8 Foot Circle?
How much decomposed granite for an 8 foot circle: about 0.6 tons at 3 inches deep. A circle 8 feet across covers about 50.3 square feet (3.1416 × 4²).
Volume and tonnage calculator →The math
- Area: 50.3 sq ft.
- Depth in feet: 3 ÷ 12 = 0.250 ft.
- Cubic yards: 50.3 × 0.250 ÷ 27 = 0.47 yd³.
- Tons: × about 1.35 tons per yard = 0.6 tons.
The gravel calculator does this for any size.
Related: How Much Decomposed Granite for a 6 Foot Circle?
Decomposed granite needed by depth
| Depth | Cubic yards | Tons of decomposed granite | Tons +10% |
|---|---|---|---|
| 2 in | 0.31 | 0.4 | 0.5 |
| 3 in | 0.47 | 0.6 | 0.7 |
| 4 in | 0.62 | 0.8 | 0.9 |
| 6 in | 0.93 | 1.3 | 1.4 |
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 12 Foot Circle?
Buying the stone
Most quarries and landscape yards deliver by the ton; ask whether there is a minimum and a delivery fee, and where the driver can dump without damaging your lawn. Decomposed granite packs into a firm, natural path when wetted and compacted in thin lifts. The scale ticket is the real weight; tons per yard here is a planning figure.
Measuring the area
Measure length and width in feet at a few points and use the largest figures, since real sites are rarely square. For odd shapes, split the area into rectangles and circles, work out each one and add them together. Depth is the number most people underestimate: drive a stake, run a level string and measure down to the dug-out surface in several spots.
Tools for the job
A flat shovel, a steel rake, a wheelbarrow and a rented plate compactor cover most residential pads. A landscape rake or the back of a rake levels the top layer, and a long straightedge or a level string shows high and low spots before the final pass.
Questions people ask
How many tons of decomposed granite for an 8 ft circle?
About 0.6 tons at 3 inches deep.
How many square feet is an 8 foot circle?
About 50.3 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.
Should I put landscape fabric under the stone?
On soft or clay soil, a woven geotextile keeps stone from sinking into the dirt and makes the layer last longer.
Related guides
- Gravel for a Fire Pit Area: Best Types and Depth
- How Much Does a Ton of Gravel Cover? Depth Chart
- Tons to Cubic Yards for Gravel: Conversion Chart
- Crushed Stone vs Gravel: Differences and Best Uses
- Geotextile Fabric for Driveways: Woven vs Nonwoven and How Much You Need
- Compacting a Driveway Gravel Base in Lifts
- How Much Pea Gravel for an 8 Foot Circle?
- How Much River Rock for an 8 Foot Circle?
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