I have been smoking for about 10 years. Started with a Chargriller offset then a Weber 22 1/2 which I have been using for about 7 years. Works great, very easy to use. I am currently building a gravity feed. I bought drawings on line at Smokebuilder. I used these as a guide but changed some dimensions to get better sheet yields. The frame is done, just need to start skinning, insulating it. It is 24"x 48" x 48" on the outside. Will post some pics.