For those of you that may have been on here for some time, you may remember my last build I documented (probably not, but maybe). See the link for my last smoker build of a 300 gallon tank. http://www.smokingmeatforums.com/t/133493/first-big-smoker-build-advice-welcomed
With the above mentioned smoker, I have since started a BBQ catering business and entered one competition last Summer. The catering business is growing rapidly and I am trying to prepare myself for expanding the business for the BBQ season this summer. I plan to chase large events such as company cookouts. Furthermore, my business has been added to a local wedding venue as a food vendor. I will continue to pursue wedding venues as well.
So the most economical design I could think of for making a catering smoker for large events (500+ people) is by using a horse trailer as the shell. That's right, a horse trailer. I have been searching the web for local horse trailers for sale that fit what I want (I would like to build this one and be done building smokers for a while).
See the picture below for what I am going to probably buy tomorrow. It is a 14 foot horse/cattle trailer just waiting to be converted to a BBQ catering machine. I will document the build as it goes. Please feel free to ask questions or comment below. I'm sure there are plenty :)