A lowboy trailer is mainly used to haul heavy equipment.  Due to its unique design, the bed sits low to the ground.  They can be loaded from the front or the rear depending on the design.  Some models allow you to place the trailer under load and lift it. Additionally, compare the different neck options. Lowboy trailers commonly feature fixed-necks, goosenecks, and removable goosenecks (RGN). Which style is right for your needs will depend greatly on how you plan to load and unload the equipment.