A sloped cabinet header or top member for use with a storage cabinet has a front wall, a rear wall, an angled top wall extending between the front and rear walls, and a bottom wall extending between the front and rear walls. First and second side walls interconnect the top, front, rear, and bottom walls. The top wall is angled with respect to the rear wall and bottom wall. The top member is mounted onto an upper surface of the storage cabinet to prevent storage of components on the top surface of the cabinet and to prevent dust or debris from accumulating on the upper surface of the cabinet.