Square ready-to-finish fire pit kits are made from Hardiebacker? fiber cement board and G90 marine-grade galvanized steel framing. These can be finished on-site to match your landscaping, hardscaping, or exterior design. Popular materials include granite or Supercast? concrete for the top, and stone or stucco for the base. Save time on your project but still customize the look to fit the surrounding patio and landscaping design. Includes a round UL Listed Crystal Fire Plus burner insert to complete the stunning look. Custom sizing available ? contact us for more information.