I want to have a fire ring made for camping and found a company online that makes them out of steel and stainless but figured I would just go to local metal shop to have them fab/ break the same thing but wanted to do out of heavy gauge/ thick aluminum to cut down on weight. Any cons on why heavy gauge aluminum shouldnt be used? I figured aluminum does better with heat? Here is a pic of what I am going to have done. it will be 3 peices that bolt together real quick and will be 8-12" tall and 30-36" across from flat sides of octagon