"A fire-smart option, steel pergolas are noncombustible, which means they are safe to use in outdoor spaces that incorporate a fire pit," Adams explains. "A stray spark will not pose an ignition risk.
Stevens also says to consider what you place it under, “Any outdoor structure, like pergolas, should be well ... Fireproof Pros has a 36 inch Fire Pit Mat, for $39 at Amazon.
Strategically placed lower than the deck onto a ground-level hardscape, the outdoor fire pit serves to open up the outdoor space without blocking the view from the upper portion of the deck.