











American Fire Products Extra Large Gray Tumbled Lava Stones (4"–6") are oversized natural volcanic fire media designed to create a bold, sculptural statement in large fire pits, fireplaces, and commercial fire features. Each stone is naturally formed and tumbled to achieve a smooth, modern finish that enhances both contemporary and rustic outdoor designs.
Made from 100% natural volcanic rock, these stones are engineered for extreme heat resistance and long-term durability. They will not crack, melt, or fade under high temperatures. Their porous structure improves airflow, helping produce a more efficient and visually dynamic flame presentation.
Designed as a top-layer decorative media, these extra-large stones must be installed over a base layer of smaller lava rock to ensure proper burner coverage and optimal flame performance. Ideal for designers and contractors seeking a premium architectural fire feature finish.
Features
- Extra large 4"–6" stones for bold, sculptural fire feature design
- Made from natural volcanic rock for maximum heat resistance
- Tumbled smooth finish for a clean, modern appearance
- Enhances flame movement and visual depth
- Porous structure improves airflow and combustion efficiency
- Will not crack, melt, or fade under extreme heat
- Designed as a top-layer fire media over smaller base lava rock
- Suitable for residential and commercial fire features
- Low maintenance, clean-burning, and long-lasting
Product Specifications
- Material: Natural Volcanic Rock
- Stone Size: 4"–6" diameter
- Color: Gray to charcoal
- Application: Top layer only (must be installed over small or medium lava rock base)
- Heat Resistance: High-temperature resistant, non-cracking, non-melting
- Finish: Tumbled smooth natural stone
- Maintenance: Low maintenance, soot-free performance
Downloads
- Tumbled Lava Manual [Download]
- FIRE GLASS CALCULATOR
- LAVA ROCK CALCULATOR
- Round Fire Pit
- Square Fire Pit
- Rectangular Fire Pit
- Fire Bowl
- Fireplace
Round Fire Pit Calculator
You Will Need [x] Pounds Of Glass
Square Fire Pit Calculator
You Will Need [x] Pounds Of Glass
Rectangular Fire Pit Calculator
You Will Need [x] Pounds Of Glass
Fire Bowl Calculator
You Will Need [x] Pounds Of Glass
Fireplace Calculator
You Will Need [x] Pounds Of Glass
- Round Fire Pit
- Square Fire Pit
- Rectangular Fire Pit
- Fire Bowl
- Fireplace
Round Fire Pit Calculator
You Will Need [x] Pounds Of Glass
Square Fire Pit Calculator
You Will Need [x] Pounds Of Glass
Rectangular Fire Pit Calculator
You Will Need [x] Pounds Of Glass
Fire Bowl Calculator
You Will Need [x] Pounds Of Glass
Fireplace Calculator
You Will Need [x] Pounds Of Glass
American Fire Products Extra Large Gray Tumbled Lava Stones (4"–6") are oversized natural volcanic fire media designed to create a bold, sculptural statement in large fire pits, fireplaces, and commercial fire features. Each stone is naturally formed and tumbled to achieve a smooth, modern finish that enhances both contemporary and rustic outdoor designs.
Made from 100% natural volcanic rock, these stones are engineered for extreme heat resistance and long-term durability. They will not crack, melt, or fade under high temperatures. Their porous structure improves airflow, helping produce a more efficient and visually dynamic flame presentation.
Designed as a top-layer decorative media, these extra-large stones must be installed over a base layer of smaller lava rock to ensure proper burner coverage and optimal flame performance. Ideal for designers and contractors seeking a premium architectural fire feature finish.
Features
- Extra large 4"–6" stones for bold, sculptural fire feature design
- Made from natural volcanic rock for maximum heat resistance
- Tumbled smooth finish for a clean, modern appearance
- Enhances flame movement and visual depth
- Porous structure improves airflow and combustion efficiency
- Will not crack, melt, or fade under extreme heat
- Designed as a top-layer fire media over smaller base lava rock
- Suitable for residential and commercial fire features
- Low maintenance, clean-burning, and long-lasting
Product Specifications
- Material: Natural Volcanic Rock
- Stone Size: 4"–6" diameter
- Color: Gray to charcoal
- Application: Top layer only (must be installed over small or medium lava rock base)
- Heat Resistance: High-temperature resistant, non-cracking, non-melting
- Finish: Tumbled smooth natural stone
- Maintenance: Low maintenance, soot-free performance
Downloads
- Tumbled Lava Manual [Download]