Extang, Inc. has manufactured America's number one selling pickup truck bed tonneau cover products since 1982. Extang was the first tonneau manufacturing company in America to sell the tonneau bed covers nationwide. Extang covers can be installed with no drilling and a clamp-on aluminum frame, meaning no permanent damage to the truck bed itself. Covers from Extang come in a number of different styles, including hinged, roll-up, folding covers and covers fitted for bed toolboxes. In a crowded field of manufacturers, Extang offers a lifetime warranty on frames and hard covers, and a 10-year warranty on tarp-style covers.