These shelf supports from Vanguard Plastics—suitable for use in closets, pantries, utility rooms, and other organizational projects—are pre-finished white ABS shelf brackets that hold 12-in. or 16-in. melamine or painted board. The supports are designed to provide greater durability than metal shelf brackets while costing less than metal/wire shelving. (800) 663-0077, VanguardStorageSolutions.com.