Just finished my first smoker build (for now) with a 250 gallon air compressor reverse flow build for home. The CC is 30" W x 76"L with a 1/4" wall thickness. The fire box is a little undersized but it is 22"x22"x22" 3/8" plate. The frame is made from 2" tube stock. Chimney is 3 1/2" schedule 80 pipe. The CC has a removable tunnel to turn the smoker into a large grill. Burned it out really good and wire wheeled the inside. Added multiple temp gauges and toggle clamps. I also used a lot of lava lock gaskets on the doors. I plan on putting counter weights on the doors eventually. If I can find the rest of the build pictures ill add them later. Enjoy!