Described is an equipment tray having integrated rail guides. The tray has a base sized for supporting a unit of electronic equipment, a back wall extending perpendicularly from the base at a back end of the tray, and opposing side walls spatially separated by the base. Each side wall extends from front to back to meet the back wall. Each side wall has at least one upper rail guide and at least one lower rail guide extending laterally from that side wall. The at least one lower rail guide is spatially separated from and opposite to the at least one upper rail guide. The upper and lower rail guides slidably engage a portion of a side rail when the tray is installed in the cabinet rack. Each side wall also has a flange at the front end for attaching the tray to a mounting rail of a cabinet rack.