Lava Rock vs. Fire Glass: Which Fire Pit Media is Right for You?
When building or upgrading a fire pit, the choice of media can dramatically impact both aesthetics and performance. Two top contenders? Lava rock and fire glass. Here’s how they compare—and how to choose the right one for your setup.
What Is Fire Pit Media?
Fire pit media refers to the material covering or surrounding the burner in gas fire pits. It doesn't burn, but it enhances flame visuals, protects components, and adds serious style to your fire feature.
Lava Rock: Natural and Rustic

Overview
Lava rock is a naturally occurring volcanic stone. Its rugged texture and heat resistance make it a long-time favorite for traditional and rustic outdoor fire features.
Pros
- Natural Look: Complements wood, stone, and outdoor landscaping beautifully.
- Cost-Effective: More affordable than fire glass.
- Durable: Withstands the elements and intense heat.
- Great as a Base Layer: Can be used under fire glass to reduce the amount needed.
Cons
- Can Crack: If it absorbs moisture, it may pop under heat.
- Dusty: May leave some soot or dust residue.
- Less Flashy: Doesn’t reflect light like fire glass.

Browse our Lava Rock Collection →
Fire Glass: Sleek and Modern

Overview
Fire glass is made from tempered glass, crafted to handle high heat without melting or discoloring. It’s the go-to choice for modern, designer-inspired fire pits.
Pros
- Visually Stunning: Shimmers and reflects the fire beautifully.
- Low Maintenance: No ash, soot, or popping.
- Customizable: Available in a wide variety of colors and shapes.
- Long-Lasting: Doesn’t fade or degrade with use.
Cons
- Higher Cost: More expensive than lava rock.
- Needs Full Coverage: More volume is needed for a deep, rich look.
- Can Show Debris: Dust or leaves may be more visible on the surface.

Explore Our Fire Glass Collection →
Which Should You Choose?
Go with Lava Rock if:
- You prefer a natural, earthy aesthetic.
- You want a budget-friendly option.
- You plan to layer media (lava rock under fire glass).
Go with Fire Glass if:
- You love a modern, reflective finish.
- You want low maintenance.
- You’re customizing your pit to match your color palette.
Final Thoughts
Both lava rock and fire glass have their own strengths, and many customers even choose to combine them—lava rock as a base, with fire glass as the focal point. Whatever you choose, you'll add beauty, warmth, and ambiance to your outdoor space.
Still not sure? Contact us — we’re happy to help you build your perfect patio fire experience.