My welding class makes these fire rings from scratch as a class fund raiser.
The graphic is drawn on a CAC program, cut out on our CNC-Plasma cutter, ends nipped, rolled and then welded with one of our Miller welders. The ring is 30" diam. X 11 1/2 tall X 1/4
computer w/CAD; CNC plasma; roll former; break press; Miller welder and hand tools normal to the trade.