How Much Crusher Run for a 8x8 Shed Base?

How much crusher run for a 8x8 shed base is a quick volume problem. 64 square feet at 4 inches comes to 0.79 cubic yards. Crusher run usually weighs about 1.5 to 1.7 compacted tons per cubic yard, so plan on roughly 1.2 tons.

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The math for a 8x8 shed base

Area: 8 × 8 = 64 sq ft.
Depth in feet: 4 ÷ 12 = 0.333 ft.
Cubic feet: 64 × 0.333 = 21.3 cu ft.
Cubic yards: ÷ 27 = 0.79 yd³.
Tons: × 1.55 = 1.2 tons.

The volume and tonnage calculator does this for any size.

Crusher run needed by depth

Depth	Cubic yards	Tons (approx.)	Tons +10%
3 in	0.59	0.9	1.0
4 in	0.79	1.2	1.3
6 in	1.19	1.8	2.0
8 in	1.58	2.4	2.7

About crusher run

Crusher run (also sold as crush and run, dense-grade aggregate or QP in some regions) mixes stone with stone dust. It compacts into a firm, nearly solid layer, which makes it the usual base under pavers, asphalt and gravel drives. If the yard sells by the cubic yard instead of the ton, use the cubic-yard column directly.

Preparing the shed base

Level the footprint, extend the stone a foot or so beyond the shed walls for drip and drainage, and compact in lifts. A timber or block border holds the pad shape. Since the shed base carries a shed floor frame, 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. 1.3 tons fits in a single 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 about 1.2 tons this job is small enough that bagged material could work; a 0.5 cubic foot bag holds about 1/54 of a yard, so compare the bag count with a bulk minimum.
Where it drops. Have the truck dump as close to the shed base as firm ground allows.

When to choose crusher run

Best suited to:

Base under asphalt, pavers or concrete
Gravel drives that need a firm, packed surface
Shed pads and equipment pads

Less suited to:

Drainage layers, since the fines slow water
Decorative beds
Spots where you want water to soak straight through

Quick reference numbers

Per inch over 100 sq ft: about 0.48 tons of crusher run (0.31 cubic yards).
Per inch over 1,000 sq ft: about 4.8 tons.
Another size for comparison: a 20x25 area at 4 inches takes about 9.6 tons.
Weight used here: about 1.55 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.
Mixing up cubic yards and tons. Yards are volume, tons are weight; convert with the product’s weight per yard.
Using inches as if they were feet. Depth has to be divided by 12 before you multiply; skipping that step inflates the order twelvefold.
Ordering exactly the math. Uneven ground and spillage nearly always need a little more than the flat calculation.

Questions people ask

How many tons of crusher run for a 8x8 shed base?

About 1.2 tons at 4 inches deep, or 1.3 tons with 10 percent extra.

How many cubic yards is a 8x8 shed base at 4 inches?

About 0.79 cubic yards.

How much does a cubic yard of crusher run weigh?

Usually around 1.5 to 1.7 compacted tons, depending on stone size, fines and moisture.

How deep should crusher run be for a shed base?

The table above shows 3 to 8 inches. Shallower depths suit top dressing; deeper depths suit new installs and heavier use.

How many square feet is 8x8?

64 square feet.

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