materials-guides · 3 min read
Lava Rock Guide
Lava rock is lightweight, porous, and decorative — great in the right context, wrong in most driveways.
Lava rock is a very lightweight, porous volcanic stone. It comes in the classic red-brown and a deep charcoal-black, and it is often used as a decorative ground cover.
Where it works
- Decorative accent beds where weight matters.
- Rooftop planters and elevated planters.
- Barbecue rock beds and fire pits (specifically graded for this).
Where to avoid it
- Driveways and any traffic surface — it crushes.
- Play areas — sharp fractures.
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These results are estimates only. Confirm final quantities, compaction, waste, and delivery requirements with Yardexa before ordering materials.