Top Hat, Loadtrail and Diamond C Fleetneck gooseneck trailers all in stock! The Trailer Showroom has the Gooseneck Trailer you've been searching for! Flatbed: This family is built with high tensile I-beam mainframes, uprights, neck, and channel cross members. Each unit listed for sale is a specific unit at the specific location, subject to prior. Optioned as deckover trailers with rear ramps, loading heavy Please verify the actual measurements of any unit prior to purchasing it. Gooseneck Trailers with Heavy Duty Frames. Used Gooseneck Trailers for Sale & Salvage Auction. Our sales representatives can help you select the perfect gooseneck trailer for your hauling needs. TrailersUSA is a site dedicated to providing resources and links that help viewers learn more about the trailer industry. Complete list of every used Scamp in the country that you can sort and filter.