3000 vs 4000 PSI Concrete
3000 PSI is the residential baseline. 4000 PSI is required for driveways, garages, and structural slabs.
3000 PSI Concrete
- Baseline residential mix
- Fine for patios and walkways
- Lowest cost
4000 PSI Concrete
- Structural residential standard
- Required for driveways
- Small cost bump
| Spec | 3000 PSI Concrete | 4000 PSI Concrete |
|---|---|---|
| Strength | 3000 PSI | 4000 PSI |
| Best for | Patios, walkways | Driveways, garages, footings |
| Vehicle traffic | No | Yes |
| Cost | $ | $$ |
Verdict
Patios, walkways, interior slabs — 3000 works. Driveways, garages, footings, and anywhere with vehicle traffic — 4000.