Crushed Stone vs Fill Dirt
Side-by-side comparison of Crushed Stone and Fill Dirt to help you choose the right gravel for your project.
Overview
Angular, mechanically crushed rock available in various sizes. Excellent for compaction and stability. Crushed stone is the workhorse of the aggregate industry, used in everything from road construction to residential driveways.
Subsoil material free of organic matter, used for grading, filling, and raising elevation. Fill dirt is a lower-grade soil that lacks the nutrients of topsoil, making it ideal for structural and non-growing applications where settling must be minimized.
Common Uses
Crushed Stone
- ✓ Driveways
- ✓ Road base
- ✓ Foundations
- ✓ Retaining wall backfill
- ✓ French drains
- ✓ Concrete aggregate
Fill Dirt
- ✓ Grading
- ✓ Filling depressions
- ✓ Raising elevation
- ✓ Backfill
- ✓ Construction site prep
- ✓ Under slabs
Pros & Cons
Crushed Stone
- + Compacts firmly for stable surfaces
- + Excellent load-bearing capacity
- + Interlocking shape prevents shifting
- + Widely available and affordable
- + Multiple size options
- − Angular edges are uncomfortable underfoot
- − Dusty when dry
- − Not as decorative as rounded gravel
- − Can be sharp on bare feet
- − May need periodic top-dressing
Fill Dirt
- + Very affordable — often cheapest material available
- + Compacts firmly for structural support
- + Does not decompose or settle like organic soil
- + Widely available from construction sites
- + Ideal base under gravel or concrete
- − Not suitable for growing plants
- − Must be free of debris and contaminants
- − May contain clay that drains poorly
- − Needs compaction in layers for stability
- − Quality varies widely between sources
Cost Comparison
| Measure | Crushed Stone | Fill Dirt |
|---|---|---|
| Per ton | $20 – $40 | $5 – $15 |
| Per cubic yard | $25 – $55 | $8 – $25 |
Sizes & Colors
Crushed Stone
Crushed stone is available in sizes from stone dust (fine) up to 4 inches. Common grades include #8 (3/8"), #57 (3/4"–1"), #3 (1"–2"), and #1 (2"–4"). Colors depend on the source rock — typically gray, blue-gray, or tan.
Fill Dirt
Fine to coarse soil particles, free of organic matter like roots, grass, or leaves. Color ranges from tan to reddish-brown depending on local geology. "Clean fill" means free of debris, rocks larger than 3", and contaminants.
Published February 11, 2026
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