Crusher Run vs Clean Gravel: The Honest Side-by-Side
Every row below is a specific, verifiable number or behavior — no vague "it depends" filler. The decision framework and both live calculators follow the table.
| Factor | Crushed Stone | Clean Gravel | Advantage |
|---|---|---|---|
| Compaction | Locks solid (fines bind) | Stays loose | Crusher run |
| Drainage | Slow — semi-sealed | Free-draining | Clean gravel |
| Best use | Bases under pavers/asphalt/slabs | French drains, wall backfill | Depends |
| Density | ~120 lb/ft³ compacted | ~105 lb/ft³ | — |
| Cost per ton 2026 | $18–$35 | $25–$45 washed | Crusher run |
| Surface use | Ruts less as driveway top | Migrates underfoot | Crusher run |
| Behind retaining walls | No — traps water | Yes — relieves pressure | Clean gravel |
| Under concrete slabs | Yes, standard | Yes w/ fabric | Tie |
| Handling | Heavier, dusty | Cleaner | Clean gravel |
| Frost heave resistance | Good if drained | Excellent | Clean gravel |
| Typical spec | 6 in compacted base | 12 in wall backfill / drain envelope | — |
| Wrong-use failure | Clogged drains | Un-compactable base | — |
Decision framework
Choose crusher run wherever the job is structural bearing.
Choose clean stone wherever the job is moving water.
Run your own numbers — both tools, live
Crushed Stone Calculator
Gravel Calculator
Next steps: figure your crushed stone numbers, or see the full project workflows and state-specific pricing. Field detail on the complete paving guide.
Data verified: · pricing sources · methodology.