Bags of Pea Gravel for a 12x14 Patio
How many bags of pea gravel for a 12x14 patio: at 3 inches deep you need about 42.0 cubic feet, which is 84 bags of the common 0.5 cubic foot size. If your store sells pea gravel in 50-pound bags instead, figure about 88 bags, since pea gravel weighs roughly 104 pounds per cubic foot.
Volume and tonnage calculator →Bag count by depth
| Depth | Cubic feet | 0.5 cu ft bags | 50 lb bags (approx.) |
|---|---|---|---|
| 1 in | 14.0 | 28 | 30 |
| 2 in | 28.0 | 56 | 59 |
| 3 in | 42.0 | 84 | 88 |
| 4 in | 56.0 | 112 | 117 |
How to figure it
- Area: 12 × 14 = 168 sq ft.
- Volume: 168 × (3 ÷ 12) = 42.0 cu ft.
- Bags: 42.0 ÷ 0.5 = 84 bags (round up).
Bags or bulk?
A cubic yard is 27 cubic feet, so 42.0 cubic feet is 1.56 yards, about 2.2 tons. Past about a yard, bulk is usually less work and often less money. Compare the bag price × 84 against a bulk quote for 2.4 tons delivered.
About pea gravel
Pea gravel is small, rounded stone, usually around 3/8 inch. It is comfortable to walk on and drains well, but it shifts under car tires and needs a solid edge to stay put.
Before you spread for a patio
- Dig and level. Remove sod and set the base slightly below the surrounding grade.
- Edge it. Steel, plastic or stone edging keeps material in place.
- Spread in layers. Rake to depth, then rake smooth; rounded stone will not compact.
- Buy a few extra. Grab 5 to 10 percent more bags for settling and touch-ups.
The volume and tonnage calculator handles other sizes and depths.
Where pea gravel fits
Good uses:
- Patios, walkways and dog runs
- Play areas with proper depth and edging
- Drainage around foundations when sized properly
Less suited to:
- Driveways and steep paths, where it rolls and ruts
- Under pavers as a base
- Areas without edging
Quick reference numbers
- Per inch over 100 sq ft: about 0.43 tons of pea gravel (0.31 cubic yards).
- Per inch over 1,000 sq ft: about 4.3 tons.
- Another size for comparison: a 20x25 area at 2 inches takes about 4.3 tons.
- Weight used here: about 1.4 tons per cubic yard.
Common estimating mistakes
- Ignoring the base. A thin surface layer over soft soil fails early no matter how much material is on top.
- Using inches as if they were feet. Depth has to be divided by 12 before you multiply; skipping that step inflates the order twelvefold.
- Ordering exactly the math. Uneven ground and spillage nearly always need a little more than the flat calculation.
- Forgetting that compaction shrinks loose material. A loose 4-inch spread of a dense-graded stone may finish closer to 3 inches after rolling.
Questions people ask
How many bags of pea gravel for a 12x14 patio?
About 84 bags of 0.5 cubic feet at 3 inches deep.
How many 50 lb bags of pea gravel for 12x14?
About 88 bags at 3 inches.
How many 0.5 cubic foot bags are in a cubic yard?
54 bags.
How many cubic feet is a 12x14 patio at 3 inches?
About 42.0 cubic feet.
When does bulk make more sense?
Usually once the job passes about a cubic yard, or when you would need more than a few car trips.
Related guides
- How Much Does a Ton of Gravel Cover? Depth Chart
- Tons to Cubic Yards for Gravel: Conversion Chart
- How Much Does a Ton of Gravel Cover? Depth Chart
- Bags of Pea Gravel for a 12x10 Patio
- Bags of Pea Gravel for a 12x12 Patio
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