AsphaltTons.com — asphalt tonnage calculator

How Much Decomposed Granite for a 5x10 Walkway?

How much decomposed granite for a 5x10 walkway is a quick volume problem. 50 square feet at 3 inches comes to 0.46 cubic yards. Decomposed granite usually weighs about 1.25 to 1.45 tons per cubic yard, so plan on roughly 0.6 tons.

Volume and tonnage calculator →

The math for a 5x10 walkway

  1. Area: 5 × 10 = 50 sq ft.
  2. Depth in feet: 3 ÷ 12 = 0.250 ft.
  3. Cubic feet: 50 × 0.250 = 12.5 cu ft.
  4. Cubic yards: ÷ 27 = 0.46 yd³.
  5. Tons: × 1.35 = 0.6 tons.

The volume and tonnage calculator does this for any size.

Decomposed granite needed by depth

DepthCubic yardsTons (approx.)Tons +10%
2 in0.310.40.5
3 in0.460.60.7
4 in0.620.80.9

About decomposed granite

DG should be laid in thin lifts, wetted and compacted. Loose DG at a deep depth stays soft and tracks onto shoes. If the yard sells by the cubic yard instead of the ton, use the cubic-yard column directly.

Preparing the walkway

Dig the path a few inches below grade, compact the bottom, add fabric if needed and install edging on both sides so the material stays on the walk. For foot traffic, the depths in the table above are a reasonable starting range.

Ordering tips

  • Round up. Compaction and uneven ground eat material. Adding about 10 percent is common.
  • Delivery size. 0.7 tons fits in a single typical dump truck load; small loads may carry a delivery fee. See how many tons of gravel in a dump truck.
  • Bulk vs bags. At about 0.6 tons this job is small enough that bagged material could work; a 0.5 cubic foot bag holds about 1/54 of a yard, so compare the bag count with a bulk minimum.
  • Where it drops. Have the truck dump as close to the walkway as firm ground allows.

Good and poor uses for decomposed granite

Good uses:

  • Garden paths and patios with a natural look
  • Around trees and in xeriscape designs
  • Stabilized DG for accessible paths

Less suited to:

  • Steep grades without a stabilizer
  • Areas right outside doors, since fines track in
  • Driveways with heavy turning traffic

Quick reference numbers

  • Per inch over 100 sq ft: about 0.42 tons of decomposed granite (0.31 cubic yards).
  • Per inch over 1,000 sq ft: about 4.2 tons.
  • Another size for comparison: a 8x16 area at 4 inches takes about 2.1 tons.
  • Weight used here: about 1.35 tons per cubic yard.

Where estimates go wrong

  • Skipping drainage. Water sitting under any surface softens the base and leads to ruts and potholes.
  • Forgetting that compaction shrinks loose material. A loose 4-inch spread of a dense-graded stone may finish closer to 3 inches after rolling.
  • Assuming every supplier uses the same weight. Two yards selling the same product name can quote different tons per yard.
  • Mixing up cubic yards and tons. Yards are volume, tons are weight; convert with the product’s weight per yard.

Questions people ask

How many tons of decomposed granite for a 5x10 walkway?

About 0.6 tons at 3 inches deep, or 0.7 tons with 10 percent extra.

How many cubic yards is a 5x10 walkway at 3 inches?

About 0.46 cubic yards.

How much does a cubic yard of decomposed granite weigh?

Usually around 1.25 to 1.45 tons, depending on stone size, fines and moisture.

How deep should decomposed granite be for a walkway?

The table above shows 2 to 4 inches. Shallower depths suit top dressing; deeper depths suit new installs and heavier use.

How many square feet is 5x10?

50 square feet.

Related guides

Open the volume and tonnage calculator → Asphalt tonnage calculator →

As an Amazon Associate, AsphaltTons.com earns from qualifying purchases. Product links below are sponsored.