Crushed Stone vs Lava Rock
Side-by-side comparison of Crushed Stone and Lava Rock 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.
Lava rock is a lightweight, porous volcanic stone commonly used in landscaping. Its rough texture helps retain moisture while allowing airflow to plant roots.
Common Uses
Crushed Stone
- ✓ Driveways
- ✓ Road base
- ✓ Foundations
- ✓ Retaining wall backfill
- ✓ French drains
- ✓ Concrete aggregate
Lava Rock
- ✓ Landscaping
- ✓ Garden beds
- ✓ Decorative ground cover
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
Lava Rock
- + Very lightweight
- + Excellent moisture retention
- + Decorative appearance
- − Breaks down over time
- − Sharp edges
- − Can scatter easily
Cost Comparison
| Measure | Crushed Stone | Lava Rock |
|---|---|---|
| Per ton | $20 – $40 | $90 – $150 |
| Per cubic yard | $25 – $55 | $110 – $180 |
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.
Lava Rock
Typically 3/4"–1.5" sizes. Red or black.
Published February 11, 2026
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