Road Base vs Class II Base
"Road base" refers to any compactable 3/4"-minus aggregate. Class II is a specific Caltrans-approved gradation required on public and permitted jobs. On a residential driveway either works.
Road Base
- Generic 3/4" compactable aggregate
- Often recycled or virgin
- Common on residential jobs
Class II Base
- Caltrans-approved gradation
- Required on permitted work
- Slightly higher cost
| Spec | Road Base | Class II Base |
|---|---|---|
| Spec | Generic | Caltrans Class 2 |
| Uses | Driveways, paver base | Same, plus permitted work |
| Cost | $ | $$ |
| Density | 1.5 t/yd | 1.5 t/yd |
Verdict
Residential driveway or patio? Either works. Permitted work, public right-of-way, or engineered spec? Class II.