How Much Crushed Stone for an 8 Foot Circle?
Round areas such as fire pit patios, tree rings and seating circles use less stone than a square of the same width. An 8-foot circle is about 50.3 square feet; at 4 inches that is 0.9 tons of crushed stone.
Volume and tonnage calculator →The math
- Area: 50.3 sq ft.
- Depth in feet: 4 ÷ 12 = 0.333 ft.
- Cubic yards: 50.3 × 0.333 ÷ 27 = 0.62 yd³.
- Tons: × about 1.4 tons per yard = 0.9 tons.
The crushed stone calculator does this for any size.
Related: How Much Crushed Stone for a 6 Foot Circle?
Crushed stone needed by depth
| Depth | Cubic yards | Tons of crushed stone | Tons +10% |
|---|---|---|---|
| 2 in | 0.31 | 0.4 | 0.5 |
| 3 in | 0.47 | 0.7 | 0.7 |
| 4 in | 0.62 | 0.9 | 1.0 |
| 6 in | 0.93 | 1.3 | 1.4 |
Using a circle of stone
Circles show up around fire pits, under swing sets, around trees and as seating areas. Steel or paver edging keeps the round shape crisp and holds loose stone in place. Do not pile stone against tree trunks; leave a gap at the base.
Related: How Much Gravel 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. Crushed stone has angular faces that lock together under a compactor, which is why it holds a pad shape. Ask your supplier for their own tons-per-yard number, since stone source and moisture change it.
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.
Common mistakes
The most frequent problem is ordering for the finished depth without allowing for compaction, which can shrink a loose layer by 10 to 20 percent. Another is skipping fabric on soft soil and watching the stone vanish into the mud over the first wet season. Spreading everything in one thick layer instead of compacted lifts also leaves a soft, rutted surface.
Questions people ask
How many tons of crushed stone for an 8 ft circle?
About 0.9 tons at 4 inches deep.
How many square feet is an 8 foot circle?
About 50.3 square feet.
How many tons of crushed stone are in a cubic yard?
Roughly 1.4 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 River Rock for an 8 Foot Circle?
- How Much Decomposed Granite for an 8 Foot Circle?
As an Amazon Associate, AsphaltTons.com earns from qualifying purchases. Product links below are sponsored.