TOP COURSE
We deliver itTop Course (5/8″, Basalt, Top Course)
5/8” Basalt Top Course is a premium crushed aggregate specifically engineered for surface applications. Produced from durable basalt rock, this material is finely crushed and screened to a consistent 5/8” size, making it ideal for use as a top layer in roadways, driveways, and pathways. The basalt composition ensures excellent hardness and longevity, while the top course grading provides a well-balanced mix of fines and angular particles for superior compaction and stability.
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
Ask for top course 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
- Pathways
- Driveways
- Walkways
- Patio base
- Garden edging
We deliver top course
#89 Crushed Stone
#89 crushed stone is small angular stone, about 3/8-inch and down, spec'd for locking under pavers or over a French drain.
See delivered price →3/8" Crushed Stone
3/8" crushed stone is the small end of angular driveway stone — packs tighter than #57 and gives a smoother-looking finish, but drains slower.
See delivered price →Top Course next to what it gets confused with
| Rock | Size | Shape | Where it wins | Can we deliver it |
|---|---|---|---|---|
| Top Course (5/8″, Basalt, Top Course) | 5/8" | Angular | Pathways | We deliver it |
| Top Course (5/8″ Minus, Top Course) | 5/8" Minus | Angular | — | We deliver it |
| Top Course (5/8″, Top Course, Recycled, Concrete) | 5/8" | Angular | — | We deliver it |
Questions people ask
What is Top Course used for?+
What size is Top Course?+
Where can I get Top Course?+
How much top course do you need?
The calculator lives on the #89 crushed stone product page — prefilled with a sensible depth and delivered price by ZIP.
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