Tenn-Tex Plastics introduces the T-803 commercial and institutional shelf support for 3/4-in.- or 1-in.-thick shelves. Made from clear polycarbonate with twin 5mm pins, this support passes a 300-lb shear test, allowing for shelf loads of more than 500 lbs.

A strategically-placed screw hole accepts an additional wood screw to permanently attach it to the side panel. The shelf itself can be fastened to the shelf support with a screw, making the shelf tamper-proof, according to Tenn-Tex.