This is a one-size-fits-all, heavy-duty bedframe that adjusts to Twin (including Twin XL), Full, Queen or King size! It’s our most versatile bedframe and is commonly used as the bedframe for a traditional boxspring and mattress set. It features 1 1/2″ hardened steel side rails and a double beam center support. All sections are double riveted for unparalleled strength creating superior rigid upright bed support. Truly a lifetime purchase that can be used over and over again as your bed size needs change.