Skip to product information
Black lava rocks loose assortment for fire pit, medium stones
  • Black lava rocks loose assortment for fire pit, medium stones
  • Loose black lava rocks held in hands for fire pit use
  • Fireplace with glowing flames and black lava rocks in the firebox
  • Outdoor fire pit with black lava rocks and visible flames along the bed
  • Rectangular fire pit with black lava rocks and flames burning in the pit
  • Outdoor fire feature with black lava rocks and bright flames across the bed
American Fire Glass 20-Pound Black Lava Rock, Medium .5-1 Inch

American Fire Glass
$35.09

American Fire Glass 20-Pound Black Lava Rock, Medium .5-1 Inch

SKU: LAVA-M-20
This item is on backorder until September 6, 2026 and will ship at that time.

Price:

$35.09
view full details

Optional Accessories:
Description Specifications QTY Calculator Downloads
Product Features
  • This natural volcanic lava rock is naturally resistant to high temperatures, making it great for fire pits or fireplaces.
  • Each bag includes 20 pounds of lava rock.
  • Lava rock is typically black but may include some brown and gray tones due to its organic nature.
    • Product Description
    The American Fire Glass 20-Pound Black Lava Rock, Medium .5-1 Inch provides a high quality fire media to enhance your gas fire feature. This lava rock material offers a long lasting and durable product. Additionally, the naturally formed porous stones are naturally resistant to extreme high heat, making them a perfect option for gas fire pits or fireplaces. The 1/2"-1" lava rock features a jagged appearance for a classic look.
    Made In USA Yes
    Product Weight 20.0 lb
    Color Black
    Product Depth 15.0 in.
    Product Height 6.0 in.
    Product Width 10.0 in.
    Style Classic

    Lava Rock Calc

    Lava Rock/Stone Calculator

    4 Sided Fire Pit Lava Rock Calculator
    Fire Pit Length:
    Fire Pit Width:
    Lava Rock Depth (3" Recommended):
      
    Cubic Feet Needed:
    Pounds Needed:
    Round Fire Pit Lava Rock Calculator
    Diameter:
    Lava Rock Depth (3" Recommended):
      
    Cubic Feet Needed:
    Pounds Needed:

    Product Resources

    American Fire Glass

    Since 2004, American Fire Glass has produced high-end fire pit and patio items in California. Their products are popular among hotels, restaurants, casinos, and residential backyards. The company has grown to employ over 30 people in a 20,000-square-foot facility and has been recognized by INC as one of the fastest-growing companies. They offer limited lifetime warranties for their stainless steel items and have a diverse selection of fire pit glass media, outdoor fire pits, fire pit tables, and fireplaces.

    Shop All American Fire Glass

    Recommended Products

    Overall rating: 5.0 / 5 from 1 reviews.

    AI Generated Review Summary

    Summary topics

    Review topics: [].

    Review highlights

    Reviews

    Happy with the quick delivery

    "Happy with the quick delivery time. Easy to work with firepitsdirect"

    — Michael B. (5/5)

    Q&A