Cut a piece of flat sheet metal and gave it some bends to fit the section I cut out. All the while I was working on this pan, I thought the "sound " of it was off. Didn't sound like a normal tin pan. One of the final cuts told me why, it's a stamped 2 piece, one inside the other! So, welding it sucked. Wanted to burn through no matter how low I had the welder set. That's why my tig welds look like $#!+.