I have a Car Mate 5 x 8 enclosed trailer with rear double doors and a side door. I paid $2700 for it brand new, as well as an aditional $1000 to have electronic breaks installed and a break away pin and battery. Inside I have a 125 gal water tank, surflo pump, 2K PSI pressure washer, 5500 Watt Generatior 1 Shelving unit, auto retract air pressure hose, air compressor, hot water extractor, 1K watt halogen lighting, extension cords, buckets...some pegboard, 3 hose hangars for different hoses and such and a shop vac. Needless to say it is pretty packed in there (in my eyes anyhow). I also have a small aluminum 2ft platform inside. I'm going to make or buy some sort of roof rack for the top of the trailer so I can put a larger ladder on top for when I do boats.