Boat Trailer from a Jet-Ski Trailer

A single jet-ski trailer is easily converted using 4x4s run horizontally. Takes 45 minutes including carpeting. The main issue is to elevate the hulls of the UFO above the fenders as the boat will be wider than a small power boat or jet-ski trailer. Used 4x4s as the cross beams instead of 2x4s to pull this off. Everything bolted to the trailer with U-bolts. You can get fancy and built some nice pads and carpet out of some noodles, a microfiber doormat and lots of duct tape, which has held up surprisingly well for the last year. The fancy padding solution is unnecessary. You could just add carpet directly to the 4x4s and you'd be all set.

Alternatively, a double jet-ski trailer can easily be modified by moving the bunks to cradle the hulls.