How Much Crushed Stone for a 15x40 RV Pad?
An RV parks for weeks at a time, so the pad needs real depth. A 15 by 40 foot pad at 6 inches is 11.11 cubic yards, about 15.6 tons of crushed stone, for how much crushed stone for a 15x40 RV pad.
Volume and tonnage calculator →The math
- Area: 600.0 sq ft.
- Depth in feet: 6 ÷ 12 = 0.500 ft.
- Cubic yards: 600.0 × 0.500 ÷ 27 = 11.11 yd³.
- Tons: × about 1.4 tons per yard = 15.6 tons.
The crushed stone calculator does this for any size.
Related: How Much Crusher Run for a 15x40 RV Pad?
Crushed stone needed by depth
| Depth | Cubic yards | Tons of crushed stone | Tons +10% |
|---|---|---|---|
| 4 in | 7.41 | 10.4 | 11.4 |
| 6 in | 11.11 | 15.6 | 17.1 |
| 8 in | 14.81 | 20.7 | 22.8 |
| 12 in | 22.22 | 31.1 | 34.2 |
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.
Related: How Much Concrete for a 15x40 Slab?
Size and access
A 15-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.
Ordering and delivery
Most quarries and landscape yards deliver by the ton; ask whether there is a minimum and a delivery fee, and where the driver can dump without damaging your lawn. Crushed stone has angular faces that lock together under a compactor, which is why it holds a pad shape. Ask your supplier for their own tons-per-yard number, since stone source and moisture change it.
Questions people ask
How many tons of crushed stone for a 15x40 RV pad?
About 15.6 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 crushed stone are in a cubic yard?
Roughly 1.4 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.
Related guides
- How Much Does a Ton of Gravel Cover? Depth Chart
- Tons to Cubic Yards for Gravel: Conversion Chart
- Crushed Stone vs Gravel: Differences and Best Uses
- Geotextile Fabric for Driveways: Woven vs Nonwoven and How Much You Need
- Compacting a Driveway Gravel Base in Lifts
- How Much Crusher Run for a 14x50 RV Pad?
- How Much Gravel for a 15x40 RV Pad?
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