American Fire Products Medium Black Lava Rock 40 Pounds - LAVA-M-040
Our 40 lb bundle of Medium Lava Rock includes four 10 lb bags, offering premium volume for larger fire pits, commercial installs, or ongoing project use. Sized between ½" and 1", this natural volcanic media delivers a bold, rustic look while supporting strong flame performance and heat retention.
Ideal for use on its own or layered above a finer base like Small Lava Rock, these mid-sized stones bring visual depth and dimension to any gas fire feature. Their larger surface area promotes airflow while still concealing burner components and enhancing flame patterns.
Natural Texture With Functional Power
Sorted for consistent size and color, this lava rock features deep black and brown hues that boost flame contrast and aesthetic appeal. The porous composition improves burner efficiency while standing up to extreme heat without cracking or melting. It's a popular choice for fire bowls, fireplaces, and statement installations.
Clean, Durable, and Made in the USA
Responsibly sourced, sifted, and packaged in the United States, our lava rock offers both beauty and peace of mind. It’s soot-free, maintenance-light, and built to last. Just pour at least two inches above your burner for best results and keep your fire feature covered when not in use.
Looking for a naturally rugged fire media with bulk coverage? Our Medium Lava Rock 40 lb Bag delivers efficient performance with a bold, textured aesthetic.
Technical Specifications
- Versatile Use: Ideal as a primary media or top layer over smaller lava rock
- Size: ½" to 1" diameter | Includes 4 x 10 lb bags (total 40 lbs)
- Material: 100% natural volcanic stone with rich earth tones
- Heat Rating: Built to withstand extreme temperatures without degrading
- Low Maintenance: Burns clean with no soot or ash—just keep dry
- USA Made: Hand-processed and packaged in the United States
- Same-Day Shipping: Most orders ship out the same day from our U.S. warehouse Learn more
- Warranty: Lifetime warranty included. Register here
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