Enclosed Trailers: An unpowered vessel that allows for the transport of goods in a secure environment. Enclosed trailers are preferable in hauling situations where the elements (rain, snow, wind) might damage the cargo. Enclosed trailers can come in a variety of sizes, from small units that are roughly the size of the flat bed on a truck, to structures that are approximately as big as recreational vehicles.
Open Trailers: Trailers that consist of only a platform and low railings that prevent the cargo from sliding off during transport. Open trailers are less expensive than enclosed trailers, but aren't as secure against theft and also leave items exposed to rain and heat.
Folding Trailers: Lightweight yet strong aluminum trailers that can be folded into one third of their size. Folding trailers are usually open trailers, but many can be outfitted with tents to protect cargo.
Sport Utility Trailers: A specialized trailer outfitted with features that allow the user to haul particular sporting equipment such as hunting, fishing and racing.
Genset Trailers: Also called a generator trailer, a genset trailer is a type of mobile generating device for electric vehicles that need to be powered in remote locations.
Livestock Trailers: A type of enclosed trailer with openings at eye level for ventilation. Livestock trailers are specifically designed for the comfortable transport of animals, and are outfitted with suspension systems that provide superior shock absorption to standard enclosed trailers.