Gravel for a 4×12 area

0.59 cubic yards (0.8 tons)

of gravel for 48 sq ft at 4 inches deep. Add about 5% for compaction and spillage.

A 4×12 foot area is 48 square feet. Use 2 to 3 inches for a path or decorative cover, 4 inches for a patio, shed or slab base, and 6 to 8 inches (in layers) for a driveway or parking pad.

Gravel for 4×12 by depth

DepthCubic yardsTons50 lb bags
2 in0.30.417
3 in0.440.625
4 in0.590.834
6 in0.891.250
8 in1.191.767
12 in1.782.5100

How it’s worked out

  1. 12 × 4 × 4 in ÷ 12 = 16 cu ft.
  2. 16 ÷ 27 = 0.593 cu yd.
  3. 0.593 × 1.4 tons per yard = 0.83 tons.

Change the numbers

Gravel needed

0.59 cubic yards

About 0.87 tons with 5% extra for compaction and spillage.

Area48 sq ft
Cubic yards0.59
Order (with extra)0.62 cu yd
Tons0.87 (about $44)
50 lb bags35

Other area sizes

Questions

How much gravel do I need for a 4×12 area?
0.59 cubic yards (about 0.8 tons) at 4 inches deep, and 0.89 cubic yards (1.2 tons) at 6 inches.
How many tons of gravel for 4×12?
About 0.8 tons at 4 inches, assuming 1.4 tons per cubic yard. Crushed stone with fines can weigh up to 1.5 tons a yard.
How many bags of gravel for 4×12?
About 34 bags of 50 lb at 4 inches deep. Above a ton or so, bulk delivery is much cheaper.
How much does gravel for 4×12 cost?
About $41 at $50 a ton for a 4 inch layer, before delivery. Prices range from about $15 to $75 a ton depending on stone type.

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