Gravel for a 15×30 area

5.56 cubic yards (7.8 tons)

of gravel for 450 sq ft at 4 inches deep. Add about 5% for compaction and spillage.

A 15×30 foot area is 450 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 15×30 by depth

DepthCubic yardsTons50 lb bags
2 in2.783.9156
3 in4.175.8234
4 in5.567.8312
6 in8.3311.7467
8 in11.1115.6623
12 in16.6723.3934

How it’s worked out

  1. 30 × 15 × 4 in ÷ 12 = 150 cu ft.
  2. 150 ÷ 27 = 5.556 cu yd.
  3. 5.556 × 1.4 tons per yard = 7.78 tons.

Change the numbers

Gravel needed

5.56 cubic yards

About 8.17 tons with 5% extra for compaction and spillage.

Area450 sq ft
Cubic yards5.56
Order (with extra)5.83 cu yd
Tons8.17 (about $408)
50 lb bags327

Other area sizes

Questions

How much gravel do I need for a 15×30 area?
5.56 cubic yards (about 7.8 tons) at 4 inches deep, and 8.33 cubic yards (11.7 tons) at 6 inches.
How many tons of gravel for 15×30?
About 7.8 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 15×30?
About 312 bags of 50 lb at 4 inches deep. Above a ton or so, bulk delivery is much cheaper.
How much does gravel for 15×30 cost?
About $389 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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