Abstract: A single connecting plate useful for joining wall-mounted shelf support brackets together with ventilated metal closet shelves of different sizes. The connecting plate is adaptable to fit two different sized closet shelves, depending upon the orientation of the longitudinal axis of the connecting plate relative to the leading edge of the different shelves. The connecting plate, which attaches to the outwardly extended end of a wall-mounted, shelf supporting bracket, couples the front edge of the rails of the shelf to the bracket. The connecting plate includes pairs of recessed portions along each edge which are sized to receive the rail of the different shelves, the distance between the recessed portions on the plate edges being a function of the distance between the leading edge rails of the shelf.