My recently purchased 5th wheel is rated at 149 inches tall. My shed door opening is 145 inches. The floor in the shed is concrete. The side walls of the shed are 168 inches. There is plenty of room t...
I have a Dometic Penguin II in the bedroom and it's 9" tall(supposedly). That's the shortest I found. Not enough to clear your present situation. I would have the contractor out and with the trailer there work out what he needs to do. 11" may do it.