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How Much Crusher Run for a 16x40 RV Pad?

How much crusher run for a 16x40 RV pad: about 18.4 tons at 6 inches deep. The pad covers 640 square feet, enough for most fifth wheels and Class A coaches.

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The math

  1. Area: 640.0 sq ft.
  2. Depth in feet: 6 ÷ 12 = 0.500 ft.
  3. Cubic yards: 640.0 × 0.500 ÷ 27 = 11.85 yd³.
  4. Tons: × about 1.55 tons per yard = 18.4 tons.

The crushed stone calculator does this for any size.

Crusher run needed by depth

DepthCubic yardsTons of crusher runTons +10%
4 in7.9012.213.5
6 in11.8518.420.2
8 in15.8024.526.9
12 in23.7036.740.4

How thick to build it

RVs put a lot of weight on a few tires and leveling jacks. A 6-inch compacted base suits most firm soils; soft or clay ground often needs 8 inches or more and a woven fabric underneath. Put jack pads or small concrete pads where the jacks land.

Size and access

A 16-foot width gives comfortable room to open slide-outs and walk around the rig. Add a wider entry flare where the pad meets the driveway so you can swing in without cutting across the lawn.

Drainage

Crown the pad or slope it slightly so rain runs off rather than collecting under the rig. Keep the top an inch or two above surrounding grade.

Getting it delivered

Small dump trucks commonly carry around 5 to 10 tons and tri-axles more, but loads vary by truck and state, so ask the yard what fits in one trip. Crusher run mixes stone and stone dust, so it packs nearly solid when compacted in layers. Round up by about 10 percent for compaction and uneven ground.

Questions people ask

How many tons of crusher run for a 16x40 RV pad?

About 18.4 tons at 6 inches deep.

How thick should an RV gravel pad be?

At least 6 inches compacted; 8 to 12 on soft soil.

Do I need fabric under an RV pad?

On soft or clay soil, a woven geotextile helps keep the stone from sinking.

How many tons of crusher run are in a cubic yard?

Roughly 1.55 tons for planning, but suppliers vary with stone size and moisture.

Should I put landscape fabric under the stone?

On soft or clay soil, a woven geotextile keeps stone from sinking into the dirt and makes the layer last longer.

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