Drain Rock
Drain Rock keeps water moving and builds a solid, compactable base for drives, pads, and drainage. Delivered in bulk with volume pricing.
How much Drain Rock do you need?
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Typical depths: paths 2–3 in, driveways/patios 4–6 in, drainage or backfill 12+ in.
You’ll need approximately
tons
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Recommendation
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- Size1 - 2"
- Weight2700 lb/yd³
- ColorGray
- Sold byton
About Drain Rock
Larger, angular stone that maintains voids for water movement, used in French drains, septic leach fields, foundation perimeters, and behind retaining walls.
| Material | Drain Rock |
|---|---|
| Category | Drainage |
| Stone size | 1 - 2" |
| Weight | 2700 lb/yd³ |
| Color | Gray |
| Sold by | the ton |
How much will you need?
One ton of Drain Rock covers roughly:
120 sq ftat 2" deep
80 sq ftat 3" deep
60 sq ftat 4" deep
Tons ↔ cubic yards for Drain Rock
1 cubic yard of Drain Rock weighs about 2,700 lb ≈ 1.35 tons. One ton covers roughly 0.74 cubic yards.
| Cubic yards → tons | Tons → cubic yards |
|---|---|
| 1 yd³ ≈ 1.35 tons | 2 tons ≈ 1.48 yd³ |
| 2 yd³ ≈ 2.7 tons | 5 tons ≈ 3.7 yd³ |
| 3 yd³ ≈ 4.05 tons | 10 tons ≈ 7.41 yd³ |
| 5 yd³ ≈ 6.75 tons | 20 tons ≈ 14.81 yd³ |
| 10 yd³ ≈ 13.5 tons |
Figures are approximate: moisture and compaction change weight.
How to install Drain Rock
-
1
Slope the trench
Minimum 1% slope (1" per 8 ft) so water actually flows.
-
2
Wrap with fabric
A nonwoven filter fabric keeps fines out of the void space.
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3
Surround the pipe
4" of stone below, 4-6" above the perforated pipe.
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4
Backfill carefully
Top with native soil or sod; do not leave the stone exposed long-term unless intended.
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