Gravel for a 8×100 area

9.88 cubic yards (13.8 tons)

of gravel for 800 sq ft at 4 inches deep. Add about 5% for compaction and spillage.

A 8×100 foot area is 800 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 8×100 by depth

DepthCubic yardsTons50 lb bags
2 in4.946.9277
3 in7.4110.4415
4 in9.8813.8554
6 in14.8120.7830
8 in19.7527.71107
12 in29.6341.51660

How it’s worked out

  1. 100 × 8 × 4 in ÷ 12 = 266.67 cu ft.
  2. 266.67 ÷ 27 = 9.877 cu yd.
  3. 9.877 × 1.4 tons per yard = 13.83 tons.

Change the numbers

Gravel needed

9.88 cubic yards

About 14.52 tons with 5% extra for compaction and spillage.

Area800 sq ft
Cubic yards9.88
Order (with extra)10.37 cu yd
Tons14.52 (about $726)
50 lb bags581

Other area sizes

Questions

How much gravel do I need for a 8×100 area?
9.88 cubic yards (about 13.8 tons) at 4 inches deep, and 14.81 cubic yards (20.7 tons) at 6 inches.
How many tons of gravel for 8×100?
About 13.8 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 8×100?
About 554 bags of 50 lb at 4 inches deep. Above a ton or so, bulk delivery is much cheaper.
How much does gravel for 8×100 cost?
About $691 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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