How Much #57 Stone for a 22x150 Driveway?

How much #57 stone for a 22x150 driveway is a quick volume problem. 3,300 square feet at 4 inches comes to 40.74 cubic yards. #57 stone usually weighs about 1.3 to 1.45 tons per cubic yard, so plan on roughly 55.0 tons.

Volume and tonnage calculator →

The math for a 22x150 driveway

Area: 22 × 150 = 3,300 sq ft.
Depth in feet: 4 ÷ 12 = 0.333 ft.
Cubic feet: 3,300 × 0.333 = 1,100.0 cu ft.
Cubic yards: ÷ 27 = 40.74 yd³.
Tons: × 1.35 = 55.0 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	20.37	27.5	30.3
3 in	30.56	41.3	45.4
4 in	40.74	55.0	60.5
6 in	61.11	82.5	90.8

About #57 stone

#57 stone is a clean crushed stone in roughly the 1/2 to 1 inch range with very few fines. It drains fast, which suits drainage layers and the top of a gravel drive, but it does not pack into a hard crust by itself. 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. This driveway sees car and truck traffic, so match the depth to that load rather than to the minimum.

Ordering tips

Round up. Compaction and uneven ground eat material. Adding about 10 percent is common.
Delivery size. 60.5 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.

When to choose #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

Less suited to:

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 20x25 area at 3 inches takes about 6.3 tons.
Weight used here: about 1.35 tons per cubic yard.

Common estimating mistakes

Forgetting that compaction shrinks loose material. A loose 4-inch spread of a dense-graded stone may finish closer to 3 inches after rolling.
Measuring only the main rectangle. Aprons, turnouts and curved edges add real square footage.
Ordering exactly the math. Uneven ground and spillage nearly always need a little more than the flat calculation.
Skipping drainage. Water sitting under any surface softens the base and leads to ruts and potholes.

Questions people ask

How many tons of #57 stone for a 22x150 driveway?

About 55.0 tons at 4 inches deep, or 60.5 tons with 10 percent extra.

How many cubic yards is a 22x150 driveway at 4 inches?

About 40.74 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 22x150?

3,300 square feet.

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