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Fire Glass Calculator
Calculate required fire glass weight in pounds for fire pits and fireplaces
Fire Glass Standard: Fire glass should generally cover your burner by about 1 to 2 inches (just enough to conceal the burner tube). Standard calculation rule: Area (sq ft) × Depth (inches) / 20 = Weight in lbs.
Shape & Dimensions
Calculation Results
⚠️ Do not overfill fire glass above 2 inches on natural gas or propane burners, as excessive glass depth can trap gas and cause delayed ignition.