How Much Gravel for a 14x40 RV Pad?
How much gravel for a 14x40 RV pad: about 14.5 tons at 6 inches deep. The pad covers 560 square feet, enough for most fifth wheels and Class A coaches.
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 gravel calculator does this for any size.
Related: How Much Crushed Stone for a 14x40 RV Pad?
Gravel needed by depth
| Depth | Cubic yards | Tons of gravel | 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 |
Depth for an RV pad
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 Crusher Run for a 14x40 RV Pad?
Size and access
Measure your rig with slides out and add a few feet. At 14 feet wide, check that slide-outs and the awning clear. Leave a turning area at the entry.
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.
Buying the stone
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. Gravel is a broad label, so confirm whether the yard means crushed or rounded stone and whether it carries fines. The scale ticket is the real weight; tons per yard here is a planning figure.
Questions people ask
How many tons of gravel 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 gravel 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 Crushed Stone for a 12x50 RV Pad?
- How Much Crusher Run for a 12x50 RV Pad?
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