Quick - Shelf Hangers Six Shelf 12" Deep Wall Mount Shelving Unit Up to 500 lb capacity Simple hook through contruction allows you to effortlessly hang shelves from each other Skip shelf boards to create "double tall" shelves. Accomodates 12" wide plywood, melamine, or 1 X 12's Overall size is 12-1/2" deep X 7ft-2" tall X board length wide [Rec 5 ft max for 3/4" thick wood]