How Much Pea Gravel Under a 12x24 Deck?
How much pea gravel under a 12x24 deck: about 3.7 tons at 3 inches deep. The area is 288 square feet, which is 2.67 cubic yards at that depth.
Volume and tonnage calculator →The math
- Area: 288.0 sq ft.
- Depth in feet: 3 ÷ 12 = 0.250 ft.
- Cubic yards: 288.0 × 0.250 ÷ 27 = 2.67 yd³.
- Tons: × about 1.4 tons per yard = 3.7 tons.
The gravel calculator does this for any size.
Related: How Much Gravel Under a 12x24 Deck?
Pea gravel needed by depth
| Depth | Cubic yards | Tons of pea gravel | Tons +10% |
|---|---|---|---|
| 2 in | 1.78 | 2.5 | 2.7 |
| 3 in | 2.67 | 3.7 | 4.1 |
| 4 in | 3.56 | 5.0 | 5.5 |
| 6 in | 5.33 | 7.5 | 8.2 |
Building the deck base
Gravel under a deck blocks weeds, keeps the ground from turning to mud and lets water drain. Lay landscape fabric first, then about 2 to 3 inches of stone; there is no need to compact it the way you would a driveway base.
Related: How Much Pea Gravel Under a 12x20 Deck?
Before the stone goes in
Remove sod and roots, level the area and slope it slightly for drainage. Install edging so the stone stays inside the footprint.
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. Pea gravel is small and rounded, comfortable underfoot, and needs edging because it rolls. Round up by about 10 percent for compaction and uneven ground.
Tools for the job
A flat shovel, a steel rake, a wheelbarrow and a rented plate compactor cover most residential pads. A landscape rake or the back of a rake levels the top layer, and a long straightedge or a level string shows high and low spots before the final pass.
Planning the cost
Stone is usually priced per ton or per cubic yard, and delivery is often a separate charge based on distance. A full truckload can cost less per ton than a partial one, so it can pay to combine projects. Ask whether the quote includes tax, delivery and any small-load fee before you compare yards.
Questions people ask
How many tons of pea gravel under a 12x24 deck?
About 3.7 tons at 3 inches deep.
How many yards of pea gravel under a 12x24 deck?
About 2.67 cubic yards.
How many tons of pea gravel 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
- Gravel Under a Deck: Weeds, Drainage, and Depth
- 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 Under a 12x24 Deck?
- How Much #57 Stone Under a 12x24 Deck?
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