The Rail-Type Liftgates for trucks - Bottled Gas applications have vertical tracks that weld to the rear frame of a pick-up truck, service body, stake body, truck body, or trailer. The Bottle Gas Liftgates feature steel retention rails that automatically open to the operating position as the liftgate platform opens. The rails automatically fold back down again when the liftgate is returned to the stored position. Platform material is standard with steel diamond floor tread plate with optional aluminum, galvanized steel, expanded metal, or bar grating.