Abstract: A corner brace which can support an inner cabinet shelf during shipping of the cabinet, and serves to secure a cabinet top in place, is disclosed. The brace is comprised of an angle member having a pair of arm members oriented substantially perpendicularly to one another. The arm members have a flat planar top edge portion oriented substantially parallel with one another. A shelf member interconnects each of the arm member front portions at a position spaced beneath the arm member top edge portions, the shelf member having a bottom portion and a flat planar top portion oriented parallel with the arm member top edge portions. The shelf member has an outer edge portion interconnecting the arm members, and also has an opening formed therein between the top portion and the bottom portion. An elongate reinforcing rib member is connected to the shelf member bottom portion adjacent the outer edge portion, the rib member interconnecting and extending continuously between the arm members.