Lippert 125460 RV Under Chassis Storage Unit Under chassis Storage Units bolts on to the frame and come completely assembled with two 27-5/8" x 17" width x 8" depth storage compartments and spare tire winch Provides extra storage underneath the coach, not water proof Spring-loaded storage boxes easily release and slide for quick and convenient access Unit designed for 8'6" wide units, some modification required on 8' wide units Measures 99-1/2" long x 19-1/8" wide x 8-1/4" deep