The flatbed trailers are unrivalled not only for strength and durability but also for their adaptability. In the basic form they are supplied with all the fittings to allow the later addition of optional extras - hinge tubes and sockets to accept the dropside kit (excluding Beaver Tail series), stowage rails for the loading skids and spigots for the prop stands. Other options include mesh-panelled side extensions, aluminium treadplate platform covering and winches.