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 was thinking that the door could maybe be raised on the inside with a filler piece added to the bottom. Maybe even a wooden 2x6. Depending on clearance when open, adding a 2x6 filler piece to the top might work.
Then heavily reinforce (scrap steel?) and notch the header to allow the a/c unit to pass through it.