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How Much Recycled Concrete Aggregate for a 16x16 Shed Base?

How much recycled concrete aggregate for a 16x16 shed base: at 4 inches deep you need about 3.16 cubic yards, which is roughly 4.1 tons at 1.3 tons per yard. The shed base covers 256 square feet, so every inch of depth adds about 0.79 yards.

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The math for a 16x16 shed base

  1. Area: 16 × 16 = 256 sq ft.
  2. Depth in feet: 4 ÷ 12 = 0.333 ft.
  3. Cubic feet: 256 × 0.333 = 85.3 cu ft.
  4. Cubic yards: ÷ 27 = 3.16 yd³.
  5. Tons: × 1.3 = 4.1 tons.

The volume and tonnage calculator does this for any size.

Recycled concrete aggregate needed by depth

DepthCubic yardsTons (approx.)Tons +10%
3 in2.373.13.4
4 in3.164.14.5
6 in4.746.26.8

About recycled concrete aggregate

Ask whether the recycled concrete has been screened for rebar and debris. Fresh-crushed concrete can also be alkaline, so keep it away from sensitive plantings and streams. Ask your supplier for their own tons-per-yard figure, since stone source and moisture shift it.

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. For a shed floor frame, the depths in the table above are a reasonable starting range.

Ordering tips

  • Round up. Compaction and uneven ground eat material. Adding about 10 percent is common.
  • Delivery size. 4.5 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 this size bulk delivery is usually the practical choice.
  • Where it drops. Have the truck dump as close to the shed base as firm ground allows.

Where recycled concrete aggregate fits

Works well for:

  • Driveway and pad bases
  • Temporary construction entrances
  • Fill under slabs when compacted in lifts

Poor fit for:

  • Near ponds, streams or sensitive plants, since fresh crush can raise pH
  • Decorative top layers
  • Drainage layers, unless the product is clean and screened

Quick reference numbers

  • Per inch over 100 sq ft: about 0.40 tons of recycled concrete aggregate (0.31 cubic yards).
  • Per inch over 1,000 sq ft: about 4.0 tons.
  • Another size for comparison: a 14x28 area at 4 inches takes about 6.3 tons.
  • Weight used here: about 1.3 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.
  • Ordering exactly the math. Uneven ground and spillage nearly always need a little more than the flat calculation.
  • Mixing up cubic yards and tons. Yards are volume, tons are weight; convert with the product’s weight per yard.
  • Skipping drainage. Water sitting under any surface softens the base and leads to ruts and potholes.

Questions people ask

How many tons of recycled concrete aggregate for a 16x16 shed base?

About 4.1 tons at 4 inches deep, or 4.5 tons with 10 percent extra.

How many cubic yards is a 16x16 shed base at 4 inches?

About 3.16 cubic yards.

How much does a cubic yard of recycled concrete aggregate weigh?

Usually around 1.2 to 1.4 tons, depending on stone size, fines and moisture.

How deep should recycled concrete aggregate be for a shed base?

The table above shows 3 to 6 inches. Shallower depths suit top dressing; deeper depths suit new installs and heavier use.

How many square feet is 16x16?

256 square feet.

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