Recommended for tough industrial loads, PENCO Clipper Hi-Performance Shelving holds up to 1250 lbs. per shelf. Shelves connect to posts via Clipper® compression clips. Shelves feature welded tubular front and rear edges with double flanged sides for extra strengh. Shelves adjust on 1" centers. Begin row with complete starter unit and connect add-on units to extend row. Common front box post cuts assembly time when connecting two or more units. Extra shelves include clips. Color: gray. Made in USA.NOTE: Capacities are based on evenly distributed loads.