Thinking about building another pit. Well actually I'm past thinking about it and has already started to cut the material out. I'm planning on making a 20"x48" pit with a side firebox. I looked around for a pipe but I am to much in hurry waiting around for a good deal to come along so I'm going about it in a different way. I cut a plate out if 1/4"plate and will roll it to get my 20". Not sure how I want to do it yet on the door, should I use the seam as one of my cuts for the door or weld it up and put it on the bottom and cut the door out else where. I'm worried with rolling it when I cut the door out it will spring open some and not have the same contour as the rest of the pit causing it not to seal well. The firebox will be made out of 1/4" also but it will be a box type. I have punched in all of the numbers in the pit calculator for my sizes on everything. Next stop is to roll the plate, will post pictures when I get to that point since right now it's just a bunch of flat plates.