4 STONE
Reference only#4 Stone (1 1/2″, Drainage, Leach Rock)
#4 stone in a 1 1/2” size range is a coarse aggregate commonly used for drainage and leach field applications. Produced by crushing and screening natural rock, this material features angular edges that help it lock together while still allowing water to flow freely through the voids. The larger 1 1/2” size is specifically chosen for its superior drainage capabilities, making it ideal for situations where rapid water movement is essential.
Also called
If a contractor or a spec sheet handed you one of these names, this is the rock they mean.
What people call it
Yard and spec names
Ask for #4 stone and we'll know what you want. If you have a spec number, give us that instead and we'll match it.
What people use it for
- Drainage systems
- Leach fields
- Erosion control
- French drains
- Base material
We don't stock this — here's what we deliver
3/4" Crushed Stone
3/4" crushed stone is angular stone at the size most driveways and drainage projects call for — big enough to shed water, small enough to spread with a rake.
See delivered price →#57 Crushed Stone
#57 crushed stone is angular 3/4-inch stone that drains fast and locks together, not something you'd walk on barefoot.
See delivered price →#4 Stone next to what it gets confused with
| Rock | Size | Shape | Where it wins | Can we deliver it |
|---|---|---|---|---|
| #4 Stone (1 1/2″, Drainage, Leach Rock) | 1 1/2" | Angular | Drainage systems | Reference only |
| #4 Stone (#4 To 1.5″, Washed) | #4 To 1.5" | Angular | — | Reference only |
| #4 Stone (#4 To 1″, Txdot) | #4 To 1" | Angular | — | Reference only |