Abstract: A utility boat trailer for towing a boat which is capable of carrying a number of different sizes of boats and a number of different hull configurations has a plurality of adjustments on various of its members including position and angle adjustment in order for load bearing rollers used on the trailer to conformably support most boat hulls loaded and carried thereon, thereby minimizing stress on the hull and enhancing the ease of loading and unloading, said trailer also including height and position adjustments for a winch which effects the loading and unloading, the configuration of various of the trailer structural members having reduced mass and enhanced strength design.