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″. Peragon is compatible with a couple different bed extenders and incompatible with others. Since the tonneau cover rails extend roughly 3″ 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.