Abstract: A storage cabinet is formed of a plurality of generally planar prepainted sheet metal panels adhesively laminated to one another substantially throughout overlapping edge portions to define a case of said cabinet. Certain of the panels are formed with deep narrow inwardly projecting reinforcing ribs disposed along edge portions of one side of the cabinet near the vertical corners, thereby forming reinforcing structures adjacent those corners. These ribs are narrow channels open to the outside of the cabinet. Another side panel formed with edge flanges at right angles to its major plane is mounted with these flanges disposed in the open channels, thereby further enhancing the strength of the cabinet, facilitating construction, and hiding the edges of the latter panel. Improved roller slide supports for the drawers are included, in which channels are formed for lateral confinement of the support rollers to desired predetermined tracks.