Create a clean border for a custom outdoor fire pit with this Simond Store octagonal steel ring insert. The model has a listed outside span of 38 inches, an inside opening of 30 inches, and a height of 10 inches. Its eight-sided design brings a geometric outline to landscaping with compatible stone or paver surrounds. The ring is made from steel approximately 2 millimeters thick and supplied in a dark finish, giving the fire pit opening a defined metal edge. It is an insert or liner, not a complete fire pit assembly, fuel burner, or seating surround. Check local outdoor burning rules, site clearance, and the planned landscape opening when choosing this size.