Originally Posted by Radio
And if you are going to maintain the trailer under your shelter, make the roof high enough to at least crawl around on top of the camper.
Listen to the man and consider one other permutation. When I had my trailer shed built, I allowed extra room side-to-side and plenty of length. I built it tall enough to crawl around on top of the TT I owned when I had the shed built. Later, when I upgraded to a 5th wheel, I had to have the roof "tallerized" (at significant expense) since the 5th wheel is so much taller. I had planned ahead for the electrical needs of a 50amp trailer but not for its height.