When building a tiny Tumbleweed house the first step is to get the perfect trailer. I suggest looking for one that compliments your personality, just kidding, utility trailers are pretty much the same. We had ours custom made, adding an extra six feet to the fencl. Adding an extra six feet meant we had to have our trailer reinforced, or something such, to carry the additional weight. We went from a 7,000 lb weight limit to 10,000, making ours the superman of flatbed trailers.