How Much Crushed Stone for a 14x40 RV Pad?
An RV parks for weeks at a time, so the pad needs real depth. A 14 by 40 foot pad at 6 inches is 10.37 cubic yards, about 14.5 tons of crushed stone, for how much crushed stone for a 14x40 RV pad.
Volume and tonnage calculator →The math
- Area: 560.0 sq ft.
- Depth in feet: 6 ÷ 12 = 0.500 ft.
- Cubic yards: 560.0 × 0.500 ÷ 27 = 10.37 yd³.
- Tons: × about 1.4 tons per yard = 14.5 tons.
The crushed stone calculator does this for any size.
Related: How Much Crusher Run for a 14x40 RV Pad?
Crushed stone needed by depth
| Depth | Cubic yards | Tons of crushed stone | Tons +10% |
|---|---|---|---|
| 4 in | 6.91 | 9.7 | 10.6 |
| 6 in | 10.37 | 14.5 | 16.0 |
| 8 in | 13.83 | 19.4 | 21.3 |
| 12 in | 20.74 | 29.0 | 31.9 |
How thick to build it
Plan on at least 6 inches of compacted stone. Heavier motorhomes, wet sites or soft soil call for 8 to 12 inches. Fabric under the stone stops it from pumping into the mud over time.
Related: How Much Crushed Stone for a 14x40 Parking Pad?
Size and access
A 14-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
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. 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 14x40 RV pad?
About 14.5 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.
Do I need to compact it?
Yes for anything that carries weight. Compact in lifts of a few inches with a plate compactor.
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 12x50 RV Pad?
- How Much Gravel for a 14x40 RV Pad?
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