After searching the internet for the exact insert I needed, I went with this one. I knew it wasn't going to work right out of the box but hoped I could modify it without any issues. Ever before I opened the box I knew it was heavy duty, the box was much heavier than I anticipated. The steel measures right around .100 of an inch and has plenty of welds between the top flange and outer ring. It only takes 8 nuts and bolts to hold together and they give you 2 extra sets just in case. Good thing, because one of the nuts I got missed the tap process at the factory. I ended up welding 2" more to the bottom of the ring to reach the bottom of my pit and also drilled the holes around the upper ring to make it "smokeless". Nowhere did it burn through welding the ring because like I said the metal is heavy duty. So far after one fire, the paint is holding up but I assume it won't forever. I'd buy this again if needed, great price for a great insert.