Gravel for a 100×100 area

123.46 cubic yards (172.8 tons)

of gravel for 10000 sq ft at 4 inches deep. Add about 5% for compaction and spillage.

A 100×100 foot area is 10000 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 100×100 by depth

DepthCubic yardsTons50 lb bags
2 in61.7386.43457
3 in92.59129.65186
4 in123.46172.86914
6 in185.19259.310371
8 in246.91345.713828
12 in370.37518.520741

How it’s worked out

  1. 100 × 100 × 4 in ÷ 12 = 3,333.33 cu ft.
  2. 3,333.33 ÷ 27 = 123.457 cu yd.
  3. 123.457 × 1.4 tons per yard = 172.84 tons.

Change the numbers

Gravel needed

123.46 cubic yards

About 181.48 tons with 5% extra for compaction and spillage.

Area10,000 sq ft
Cubic yards123.46
Order (with extra)129.63 cu yd
Tons181.48 (about $9,074)
50 lb bags7260

Other area sizes

Questions

How much gravel do I need for a 100×100 area?
123.46 cubic yards (about 172.8 tons) at 4 inches deep, and 185.19 cubic yards (259.3 tons) at 6 inches.
How many tons of gravel for 100×100?
About 172.8 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 100×100?
About 6914 bags of 50 lb at 4 inches deep. Above a ton or so, bulk delivery is much cheaper.
How much does gravel for 100×100 cost?
About $8,642 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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