AGGREGATE SPEC: Modern Xeriscape Patio, Bocce Ball Court, Park Pathway

Decomposed Granite (DG) Patio & Pathway Calculator

A 25×12 decomposed granite patio covers 300 square feet. At a 3-inch depth, DG compacts by up to 15% under plate tamping. You will need approximately 3.4 cubic yards or 5.0 tons of stabilized or natural decomposed granite.

AREA MEASUREMENTS300 SQ FT
Compaction settling factor:+20%
Standard waste tolerance:+10%
Aggregates Profile & Compaction
25' × 12' (3" Depth)
Aggregate profile for Decomposed Granite (DG) 25' x 12'20% COMPACTION SETTLING FACTOR3" DEPTHDECOMPOSED GRANITE (DG)DENSITY: 1.45 TONS/YD³HEAVY-DUTY DRIVEWAY FABRIC
Compacted Volume:3.61 cu yds
Total Mass Needed:5.2 Tons
Delivery Size:Tandem Dump
Yield Summary (25' × 12')
RETAIL BAG EQUIVALENT
208 Bags
50 lb bags from home improvement center
Total Weight:10,400 lbs
BULK QUARRY DUMP TRUCK
5.2 Tons
1 Tandem dump truckload(s)
Compacted Volume:3.61 cu yds
Est. Quarry Cost:$234

Frequently Asked Questions: Decomposed Granite (DG) Patio & Pathway Calculator

How much does decomposed granite compact?

Decomposed granite compacts by 15% to 20% when wet and vibrated with a mechanical plate compactor. Our calculator automatically applies this factor.

How many tons of DG do I need for a 300 sq ft patio?

At 3 inches deep, 300 square feet requires approximately 5.0 tons (about 3.4 cubic yards) of decomposed granite.