1/4" Small Black Lava Rock - 10 lbs
Bring the enchanting beauty of volcanic rock to your fire pit. Small pieces no bigger than 1/4", this fire media will bring visual interest to your fire pit while hiding the burner underneath the rock. Especially great for propane gas fire pits which can leave soot behind when it burns, these lava rocks will keep your fire pit look clean while giving it a distinct look.
QUICK FORMULA'S Fireplace Formula: 1. Take the front and back width of your fireplace and add them together _______ 2. Divide that number by 2 _______ 3. Multiply that number by the depth of the fireplace _______ 4. Multiply that number by the depth of the Lava Rock you would like _______ 5. Divide that number by 231 _______ 6. Multiply the number by 12 to get the total pounds of Lava Rock needed Fire Pit Formula: 1. Take the diameter of the fire pit and multiply it by itself. _______ 2. Multiply by the depth of the Lava Rock you would like. _______ 3. Divide by 231. _______ 4. Multiply by .8 _______ 5. Multiply by 12 to get total. _______