Landscaping Materials

Decomposed Granite Calculator

Decomposed granite compacts into a firm, permeable surface for paths and patios. Enter the area and depth to get cubic yards, tons, and 50 lb bag count, with a bulk order rounded to the nearest half yard.

Area
ft
ft
in
%

Order decomposed granite

1 cu yd

net 0.74 cu yd

Approximate weight

1.1 tons

2,200 lb

50 lb bags

46

without waste 40

Area

80 sq ft

Cubic feet

20 cu ft

Cubic meters

0.57 m³

Assumptions

  • Decomposed granite density: about 110 lb per cubic foot (roughly 1.5 tons per cubic yard).
  • 15 percent waste allowance for compaction and edging losses.
  • Order quantity rounded up to the nearest half cubic yard.

Sizing a decomposed granite project

DG behaves differently from gravel: it compacts. That means the loose cubic yards you order compress by roughly 15 percent when tamped, so ordering exactly the calculated volume leaves you short. This calculator defaults to a 15 percent waste allowance to cover compaction and perimeter losses.

Stabilized vs standard

Stabilized DG mixes a binder into the fines, producing a firmer, lower-dust surface that resists erosion. It costs more per yard but usually pays back in reduced top-ups.

Frequently asked questions

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Educational estimates only. Not financial, tax, or legal advice.

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