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How Much Decomposed Granite for a 5x15 Dog Run?

How much decomposed granite for a 5x15 dog run: about 0.9 tons at 3 inches deep. The area is 75 square feet, which is 0.69 cubic yards at that depth.

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The math

  1. Area: 75.0 sq ft.
  2. Depth in feet: 3 ÷ 12 = 0.250 ft.
  3. Cubic yards: 75.0 × 0.250 ÷ 27 = 0.69 yd³.
  4. Tons: × about 1.35 tons per yard = 0.9 tons.

The gravel calculator does this for any size.

Decomposed granite needed by depth

DepthCubic yardsTons of decomposed graniteTons +10%
2 in0.460.60.7
3 in0.690.91.0
4 in0.931.21.4
6 in1.391.92.1

Dog Run tips

For a dog run, rounded stone such as pea gravel is gentle on paws and drains fast. Lay it about 3 inches deep over fabric and edge the run so the stone stays put.

Prep

Remove sod and roots, level the area and slope it slightly for drainage. Install edging so the stone stays inside the footprint.

Ordering and delivery

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. Round up by about 10 percent for compaction and uneven ground.

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.

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.

Questions people ask

How many tons of decomposed granite for a 5x15 dog run?

About 0.9 tons at 3 inches deep.

How many yards of decomposed granite for a 5x15 dog run?

About 0.69 cubic yards.

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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