A sliding guide rail assembly is provided for slidably mounting a drawer or equipment within a cabinet or chassis. The rail is formed from a sheet metal into a T-shaped section onto which a sliding means fits and slides smoothly thereon. Guides also formed from a sheet metal into C-sections fitting over the sliding means and operable to slide smoothly therewith. This enables the drawer/equipment mounted on the slide to be drawn in and out with little effort or wear and tear.