Gray Lava Rock

This 55-pound bag is designed to cover a standard-sized fire pit burner. For the best results, measure the depth of your fire pit pan; you generally want enough rock to completely cover the burner and the gas supply lines, but not so much that it smothers the flame.

Yes, these lava rocks are safe for use with both propane and natural gas fire pits. They are specifically designed to withstand high heat and will not pop or crack like regular stones when exposed to direct flames.

The stones are screened to be between 1/2 inch and 1 inch in size. While they are natural volcanic rock and will have slight variations in shape and texture, this size range ensures a consistent, clean look across your fire pit.

It is common for lava rock to have some dust or small debris from the shipping process. We recommend giving them a quick rinse with a garden hose and letting them dry completely before placing them in your fire pit to prevent any initial popping or ash.

Lava rock offers a more rugged, natural aesthetic compared to the polished, modern look of fire glass. Functionally, lava rock is excellent at retaining heat and distributing it evenly, making it a practical choice if you prioritize warmth over the reflective sparkle of glass.