The trade option: great for loading long items such as timber and ladders with an optional roller kit to help glide long or awkward items onto the rack. The side rails prevent items from slipping or rolling of the rack during loading and allow you to fill the rack right up to the edge. Attaching quickly and easily to the dovetail extrusion around the rack’s perimeter, the range of optional rails mean you can have a full guard rail system on or off in just a few minutes!