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How Much Pea Gravel for a 12 Foot Circle?

How much pea gravel for a 12 foot circle: about 1.5 tons at 3 inches deep. A circle 12 feet across covers about 113.1 square feet (3.1416 × 6²).

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The math

  1. Area: 113.1 sq ft.
  2. Depth in feet: 3 ÷ 12 = 0.250 ft.
  3. Cubic yards: 113.1 × 0.250 ÷ 27 = 1.05 yd³.
  4. Tons: × about 1.4 tons per yard = 1.5 tons.

The gravel calculator does this for any size.

Pea gravel needed by depth

DepthCubic yardsTons of pea gravelTons +10%
2 in0.701.01.1
3 in1.051.51.6
4 in1.402.02.2
6 in2.092.93.2

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. Rake the stone level after spreading and add a thin top-up after the first season.

Buying the stone

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. Pea gravel is small and rounded, comfortable underfoot, and needs edging because it rolls. Round up by about 10 percent for compaction and uneven ground.

Tools for the job

For anything bigger than a small path, rent a plate compactor; hand tampers cannot match it. A wheelbarrow, shovels, a hard rake and stakes with string are the rest of the kit. Wet the stone lightly before compacting so it binds.

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.

Questions people ask

How many tons of pea gravel for a 12 ft circle?

About 1.5 tons at 3 inches deep.

How many square feet is a 12 foot circle?

About 113.1 square feet.

How many tons of pea gravel are in a cubic yard?

Roughly 1.4 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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