Combining a rack and truck bed cover has never been easier with the Elevate Rack. This truck accessory creates more storage options and overall cargo space for your truck. Included in your purchase are telescoping uprights (18" or 28" in height) with Full-Size (FS) or Compact Size (CS) crossbars. Constructed from durable, powder-coated aluminum, this rack is capable of carrying up to 500 lbs. while on the road, and 250 lbs. while off-road when weight is evenly distributed, making overlanding a breeze. The Elevate Rack is designed to be compatible with most inside mount tonneau covers. Whether you have a folding or rolling truck bed cover, you will not lose functionality while using this rack. Installation of this product takes only a few minutes. Simply slide the Rack into the T-Slot Channel of your truck bed cover or Elevate TS Rails and you are ready for an overland adventure. When choosing the right Elevate Rack for you, determine the width of your rack (FS or CS) and the length of your bed. If you already have a truck bed cover that is integrated with a T-Slot channel, TS Rails are not required to install. Backed by a Limited Lifetime Warranty.