KAYSO INC Lava Rocks - Decorative Landscaping Rocks or Gas Fire Pits Rocks, Black and Red, 3/4" (.75") - 1 1/2" (1.5") (Black 10 LB)

• UPC   018452197612
• Lava Rocks size ranges from 1/2" to 1-1/2" - Available in Black or Red - 10 Pounds or 40 Pounds Lava rocks can be used with Fire Pits, Fireplaces, or Decoratively Lava Rocks is heat proof and ideal usage in Indoor and Outdoor Gas Fire Pits and Fireplaces Calculating How Much Lava Rocks You Need - Circular/Round Fire Pit - To calculate how many pounds of Lava Rocks you'll be needing for your project, simply: Radius (Inches) x Radius (Inches) x 3.14 = Square Inches / Then Divide the Square Inches you have by 16 = Number of Pounds you'll be needing (This is calculated for the optimal depth for Lava Rocks of 2" Deep) Calculating How Much Lava Rocks You Need - Square/Rectangular Fire Pit - Width (Left & Right) x Depth (Front to Back) = Square Inches / Then Divide the Square Inches you have by 16 = Number of Pounds you'll be needing to get how many pounds of Lava Rocks you'll be needing (This is calculated for the optimal depth for Lava Rocks of 2" Deep)