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The Outdoor GreatRoom Company Lava Rocks for Fire Pits


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The Outdoor GreatRoom Company Lava Rock for Gas Fire Pits and Fireplaces

The Outdoor GreatRoom Company Authorized Dealer

The Outdoor GreatRoom Company Lava Rock gives your fire feature a traditional and more realistic look. Lava rocks will look even better with a log set. Black lava rocks and tumbled lava rocks are available.

Your burner comes with standard media, but in case you want your fire feature to have a more traditional look, lava rocks are a great addition. Black lava rocks are sold in 20-lb bags.

Tumbled Lava Rocks vary in size, from .75"-1.5" and are sold in 6-lb bags. Initially, these may appear darker when you first open the package. After it is burned and the extra moisture is released they will turn more grey.

Enhance the look of your fire pit even further by adding black or tumbled lava rocks!


  • Decorative Rocks for Fire Pits
  • Available in Black Lava Rocks or Tumbled Lava Rocks
  • For black lava rocks, 1 bag recommended for most burners, 2 bags recommended for CF12120, CF-1242-L
  • For tumbled lava rocks, 1 bag is recommended for 12" (CF-12) burner, 2 bags for 20" (CF-20 or CF-1224) burners, 3 bags for 42" (CF-1242) burner, add more bags for larger burners.
  • Weight:
    • Black Lava Rocks: 20 lbs
    • Tumbled Lava Rocks: 6 lbs

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We offer market-leading 30-Day Free Returns! Read more about our Returns Policy here.

The warranty terms listed below apply to current year models and are for informational purposes only. Please refer to your Owner's Manual for the warranty terms that apply to your particular product.

Fire Pits are covered under a 1-year manufacturer’s warranty.

Outdoor Fireplaces are covered under a 1-year manufacturer’s warranty.

Stainless Steel Gas Burners are covered under a limited lifetime warranty.

Glass Wind Guards are covered under a 90-day manufacturer’s warranty. Stainless steel parts and assemblies carry a limited lifetime warranty.

Tan protective fire pit & fireplace covers are covered under a 1-year manufacturer’s warranty.

Thank you for purchasing an Outdoor GreatRoom Company product! Your product was made with pride in the USA.

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