A refrigerator shelf includes a frame having laterally spaced-apart first and second side members, defining opposite first and second ends defining first and second portions of a front edge profile of the refrigerator shelf, respectively. A medial member extends between the first and second side members at respective locations between the first and second ends. A first substrate is received between the first and second side members, defines a first edge, and is moveable between an extended position with the first edge adjacent the first ends of the first and second members and a tucked position with the front edge spaced away from the first ends. A trim member extends along an edge of the second substrate and defines a third portion of the front edge profile that is aligned with and physically engages with the first and second portions when the second substrate is in the extended position.