Dowell 28&ldquo; Kidney Shape Chrome Lazy Susan Double Rack Kitchen cabinet 2 Shelf Set 28" is the actual diameter so please allow 30" inside for installation Size: Dia.28"x(Height 26"-31"Ajustable) 270degree (Look at simplified diagram For Base Corner Cabinets with independently hinged doors 40 lbs max capacity per shelf (13.5 pounds/pc---- Sufficient strength ) Large Warehouse and More than 500pcs in Stock