Calculate cubic yards, tons, and cost of pea gravel for paths, playgrounds, and landscaping.
Pea Gravel Depth Guide
| Use | Recommended Depth | Notes |
| Decorative border | 1–2 inches | Mainly for looks, minimal function |
| Garden path | 2–3 inches | Use landscape fabric underneath |
| Pet area / dog run | 3–4 inches | Easier on paws than crushed stone |
| Driveway (not recommended) | 4+ inches | Pea gravel shifts; use crushed stone for driveways |
| Playground safety surface | 9–12 inches | CPSC standard for equipment up to 8 ft high |
What is Pea Gravel?
Pea gravel is small, rounded gravel typically 3/8 inch in diameter. Its smooth, rounded edges make it comfortable underfoot and safe for playgrounds. Unlike crushed stone, it does not compact — which is great for drainage but means it shifts under foot traffic and vehicles. It comes in natural tan/grey or colored varieties.
Pea Gravel vs. Crushed Stone
| Feature | Pea Gravel | Crushed Stone |
| Shape | Round, smooth | Angular, jagged |
| Compaction | Does not compact | Compacts well |
| Drainage | Excellent | Good |
| Best use | Paths, playgrounds, decor | Driveways, bases, patios |
| Cost | $25–55/ton | $20–45/ton |