• Pair of XXL lava rocks positioned side by side, highlighting their irregular contours, thick structure, and porous surface designed for bold fire pit and landscape installations.
  • Round metal fire bowl filled with extra extra large lava rocks burning with vivid orange flames, placed on a stone patio near a backyard pool and greenery.
  • Two extra extra large XXL lava rocks from American Fire Products displayed on a white background, showing their oversized, rugged shape and heavily pitted volcanic texture in deep charcoal gray.
  • Side-by-side size comparison of small, medium, and extra extra large lava rocks held in hands, labeled with size ranges to show scale and thickness differences for fire pit applications.
  • Close-up view of extra extra large lava rock revealing dense volcanic vesicles, rough texture, and natural dark gray coloration with subtle mineral variations.
  • Large mound of extra extra large lava rocks stacked outdoors, showing varied organic shapes and coarse volcanic texture ideal for large-scale fire features or landscaping.
  • Custom rectangular concrete fire pit filled with oversized lava rocks and bright linear flames, set on a modern patio with wood seating and landscaped backyard surroundings.
  • Contemporary linear concrete fire feature loaded with large lava rocks before ignition, positioned beside outdoor wicker seating on a clean patio setting.
  • Square outdoor fire table with a copper-toned top and center tray filled with chunky lava rocks, surrounded by wicker patio chairs and decorative plants.
  • Modern square concrete fire pit packed with large black lava rocks, framed by wood benches and landscaped garden elements in a contemporary outdoor space.
  • Modern round concrete fire pit with a stainless steel burner pan and natural lava rock, producing tall yellow flames in a cozy backyard seating area with wooden Adirondack chairs, side tables, and a warm wood-paneled exterior wall.
  • Modern luxury backyard with a custom linear concrete fire pit filled with extra extra large XXL lava rock, flames stretching across the burner in front of a resort-style pool and covered two-story patio with dark wood beams.
  • Nighttime courtyard scene featuring a long rectangular concrete fire pit packed with oversized XXL lava rock, glowing flames illuminating surrounding lounge chairs and Mediterranean-style balconies.
  • Rectangular custom stone fire table with extra extra large lava rock media and a clear tempered glass wind guard, bright flames rising evenly along the linear burner beneath a covered backyard patio.
  • Outdoor linear concrete fire pit topped with a tempered glass wind guard and filled with chunky XXL lava rock, flames reflecting off the glass panels in an open lawn setting.
  • Round custom paver fire pit loaded with extra extra large lava rock, steady flames flickering at dusk against a backdrop of illuminated stone seating walls and tall evergreens.
  • Close-up of a circular stone fire pit packed with oversized XXL lava rock, vibrant flames weaving through the porous volcanic stones in a cozy nighttime backyard lounge.
  • Contemporary round steel fire bowl filled with extra extra large lava rock, bright orange flames rising dramatically with outdoor seating blurred in the background.
  • Covered patio with a circular concrete fire feature surrounded by Adirondack chairs, XXL lava rock centered in the burner area with flames creating a warm focal point beneath natural wood beams.
  • Evening shot of a round stacked-stone fire pit filled with extra extra large lava rock, blue and orange flames glowing against landscape lighting and dark tree silhouettes.
  • Square copper-toned fire table insert loaded with extra extra large XXL lava rock, showcasing the rugged porous texture and natural gray finish of the volcanic stones in a backyard seating area.
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XX-Large Black Lava Rock (4" - 6") by American Fire Products

XX-Large Black Lava Rock (4" - 6") by American Fire Products

  • Premium Craftsmanship
  • Warranty Included
  • Certified Performance

Ships in: 1-3 Business Days

LAVA-XXL-10

Size
$20.24 USD
$26.99 USD $20.24 USD
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What's Included

Per Qty: 10 lbs or 20 lbs

Specifications

Width: 4" - 6" Thickness

Weight: Per Qty, 10 lbs or 20 lbs

Material/Finish: Black, Rugged, Porous Lava Rock

Fuel Type: Natural Gas or Propane Gas

Warranty: Lifetime

Documents & Downloads

Shipping & Returns

Shipping:

  • This Product Ships Small Parcel (Ground). For more details, please see our full shipping policy.

Returns & Exchanges:

  • This product is eligible for returns within 30 days of delivery minus 15% Re-Stocking Fee & any applicable Shipping cost. For more details, please see our full return policy.

Disclaimers

Important Safety Notice:

  • This product includes chemicals recognized by the State of California as potentially causing cancer, birth defects, or other reproductive harm. Please handle with care and adhere to all safety instructions outlined in the product manual. For detailed information about Proposition 65 and its implications, please visit the official CA Prop 65 Warning website.
  • Lava Rock must be dry prior to lighting burner. If Moisture is within Lava Rock (from a rainy day or humid area), turn fire pit on slowly, allowing excess moisture to evaporate within the first few minute before increasing the heat. Popping can result if instructions are not followed.

Sooting or Blackening:

  • Due to the nature of Gas Burners, Sooting or Blacking seen on media is normal and to be expected. For excessive sooting, please refer to owner's manual attached.

Enhance your fire feature with the bold, natural beauty of XX-Large Black Lava Rock (4" - 6") by American Fire Products. These substantial, rugged stones make a striking statement in gas fire pits, fireplaces, and outdoor fire bowls. Their naturally porous composition ensures excellent heat retention and distribution, creating consistent, long-lasting flames. The deep black hue complements any design style, adding a sophisticated and modern aesthetic to your fire feature.

Crafted for durability, these large lava rocks withstand extreme temperatures without breaking or deteriorating, making them a practical and visually stunning choice for residential and commercial use. Their lightweight nature simplifies both installation and maintenance, making them as convenient as they are stylish.

Available Quantities:

  • 10 lbs Bag: Perfect for smaller fire pits or decorative accents.
  • 20 lbs Bag: Ideal for larger fire features or to add depth and texture.

Bring a bold, timeless look to your fire feature with XX-Large Black Lava Rock (4" - 6") by American Fire Products—a durable, eco-friendly, and cost-effective choice for both indoor and outdoor spaces.

*NOTE: Due to the large size, the amount of lava rocks may be less than expected. 

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FAQ

Everything You Need to Know

What is GFRC concrete, and will every finish look identical?

GFRC is Glass Fiber Reinforced Concrete, offering strength, reduced weight, and outdoor durability. Because each enclosure is hand-finished, minor variations in color, texture, mottling, pinholes, and surface character are normal.

Can the fire pit remain outdoors year-round?

The GFRC enclosure is designed for outdoor use, but the fire pit should be protected from rain, snow, sprinklers, standing water, and prolonged moisture. The included protective cover should only be installed after the burner and fire glass are completely cool and dry.

Does the fire pit require professional installation?

A licensed or certified gas professional should install or connect the appliance, confirm gas pressure and capacity, perform leak testing, and verify safe operation. This is especially important for natural gas lines and any fuel conversion.

Are the glass wind guard and burner cover included?

They are optional accessories sold separately. Both are model-specific, so customers must select the correct shape and dimensions for their fire pit. The burner cover must always be removed before lighting the appliance.

Does the fire pit require electricity?

No household electrical connection is required. The ignition system is battery-powered and uses a spark igniter with flame-sensing technology. The system generally operates with a replaceable AAA battery.

What surface and clearances are required?

The fire pit must be installed on a stable, level, noncombustible surface such as concrete, masonry, brick, or stone. Adequate clearance must be maintained from walls, ceilings, furniture, vegetation, and combustible materials. Customers should follow the manual for their specific model and all applicable local codes.