How Much #57 Stone for a 10x100 Driveway?

How much #57 stone for a 10x100 driveway: at 4 inches deep you need about 12.35 cubic yards, which is roughly 16.7 tons at 1.35 tons per yard. The driveway covers 1,000 square feet, so every inch of depth adds about 3.09 yards.

Volume and tonnage calculator →

The math for a 10x100 driveway

Area: 10 × 100 = 1,000 sq ft.
Depth in feet: 4 ÷ 12 = 0.333 ft.
Cubic feet: 1,000 × 0.333 = 333.3 cu ft.
Cubic yards: ÷ 27 = 12.35 yd³.
Tons: × 1.35 = 16.7 tons.

The volume and tonnage calculator does this for any size.

#57 stone needed by depth

Depth	Cubic yards	Tons (approx.)	Tons +10%
2 in	6.17	8.3	9.2
3 in	9.26	12.5	13.8
4 in	12.35	16.7	18.3
6 in	18.52	25.0	27.5

About #57 stone

Since #57 is washed and open-graded, it moves a little underfoot. Many installers put it over a compacted base of a dense-graded stone rather than straight on soil. Weight per yard is a planning number; the scale ticket at the yard is the real one.

Preparing the driveway

Strip sod and soft topsoil, grade for drainage and compact the subgrade before any stone goes down. Gravel drives last longer with a compacted base layer under the top stone and a slight crown so water runs off. Since the driveway carries car and truck traffic, a little extra depth is cheap insurance.

Ordering tips

Round up. Compaction and uneven ground eat material. Adding about 10 percent is common.
Delivery size. 18.3 tons may take more than one typical dump truck load; small loads may carry a delivery fee. See how many tons of gravel in a dump truck.
Bulk vs bags. At this size bulk delivery is usually the practical choice.
Where it drops. Have the truck dump as close to the driveway as firm ground allows.

Good and poor uses for #57 stone

Works well for:

French drains and drainage layers
The top course of a gravel driveway
Under sheds where water needs to drain away

Think twice for:

A standalone base, since it does not pack hard without fines
Paver setting beds
Walk paths meant for strollers or wheelchairs

Quick reference numbers

Per inch over 100 sq ft: about 0.42 tons of #57 stone (0.31 cubic yards).
Per inch over 1,000 sq ft: about 4.2 tons.
Another size for comparison: a 8x16 area at 2 inches takes about 1.1 tons.
Weight used here: about 1.35 tons per cubic yard.

Mistakes that throw off the order

Assuming every supplier uses the same weight. Two yards selling the same product name can quote different tons per yard.
Mixing up cubic yards and tons. Yards are volume, tons are weight; convert with the product’s weight per yard.
Forgetting that compaction shrinks loose material. A loose 4-inch spread of a dense-graded stone may finish closer to 3 inches after rolling.
Using inches as if they were feet. Depth has to be divided by 12 before you multiply; skipping that step inflates the order twelvefold.

Questions people ask

How many tons of #57 stone for a 10x100 driveway?

About 16.7 tons at 4 inches deep, or 18.3 tons with 10 percent extra.

How many cubic yards is a 10x100 driveway at 4 inches?

About 12.35 cubic yards.

How much does a cubic yard of #57 stone weigh?

Usually around 1.3 to 1.45 tons, depending on stone size, fines and moisture.

How deep should #57 stone be for a driveway?

The table above shows 2 to 6 inches. Shallower depths suit top dressing; deeper depths suit new installs and heavier use.

How many square feet is 10x100?

1,000 square feet.

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