Hey there everyone. I'm new to this forum and the art of building smokers. I am from Australia and these types of smokers are pretty well non existent here. I have been studying these forums for the last 2 evenings and think ive got it figured out. I have a lot of welding experience for a young fella and will aim to sell these if all goes to plan. Here is what ive got for the first build: 2 bottom halves of 45kg nitrogen tanks and a shit load of 6mm plate for a fire box and smoke baffle plate. I have included my measurements of tank in the pictures. I'll be joining both halves of tanks together and cutting/hinging door in the morning. If anyone can offer assistance on smoke flow calculations i would appreciate it. Thanks guys i look forard to sharing and learning with the rest of you. Btw here is a pot belly fire i built last week.