I am as you know, still in the design stage. I was working in the fb design and would like to have an ash pan with a dedicated door for the ash pan. Is the area that contains the ash pan to be included in the fb dimensions or would the ash pan be extra. So my firebox will be 36 in cubed. If I want my ash pan to be 4 in tall, would the dimensions of my fb change from 36 in cube to 36" wide by 36" long by 40" tall? I haven't yet decided how my smoker will be laid out on the trailer. I think I like the suggestions of having doors on both sides of my cc but I won't know if it will be feasible to have doors on both sides. I have a wish list of things that I would like on the smoker that I will work into the build if I can and doors on both sides is definitely going on it. Keep the ideas and comments rolling. With this being my first actual build, I need all the help I can get lol. Also I need suggestions for my doors, both fb and cc and ideas on the best door design and sealing it up and gasket material etc. Once again, thanks for all the help guys