A bed extender can be a convenient upgrade when you’re in need of extra room–just lower your tailgate and deploy your bed extender and your bed is fully functional with an extra 18-24″. Since the Landmark™ retractable cover rails extend roughly 3″ and the Tectonic™ Fold-Up rails roughly 2.25" into your bed on each side, careful selection of bed extenders is required. Below are some guidelines to aide you in selecting a compatible bed extender.
Ford Bed Extender
Nissan Extender