Gravel for a 6×40 area

2.96 cubic yards (4.1 tons)

of gravel for 240 sq ft at 4 inches deep. Add about 5% for compaction and spillage.

A 6×40 foot area is 240 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 6×40 by depth

DepthCubic yardsTons50 lb bags
2 in1.482.183
3 in2.223.1125
4 in2.964.1166
6 in4.446.2249
8 in5.938.3332
12 in8.8912.4498

How it’s worked out

  1. 40 × 6 × 4 in ÷ 12 = 80 cu ft.
  2. 80 ÷ 27 = 2.963 cu yd.
  3. 2.963 × 1.4 tons per yard = 4.15 tons.

Change the numbers

Gravel needed

2.96 cubic yards

About 4.36 tons with 5% extra for compaction and spillage.

Area240 sq ft
Cubic yards2.96
Order (with extra)3.11 cu yd
Tons4.36 (about $218)
50 lb bags175

Other area sizes

Questions

How much gravel do I need for a 6×40 area?
2.96 cubic yards (about 4.1 tons) at 4 inches deep, and 4.44 cubic yards (6.2 tons) at 6 inches.
How many tons of gravel for 6×40?
About 4.1 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 6×40?
About 166 bags of 50 lb at 4 inches deep. Above a ton or so, bulk delivery is much cheaper.
How much does gravel for 6×40 cost?
About $207 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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