The Charleston Sustainable Wooden Bed Frame - Oak or Maple in Twin, TwinXl, Full, Queen, King & Cal King Sizes - Made in the USA (Red Oak, King) Sustainable Wooden Bed Frame Made in the U.S.A. Made of Solid Oak or Maple that was sustainably harvested (FSC certified) A linseed oil finish (non-toxic, and VOC-free) used to bring out the wood's natural beauty. 12" platform height, designed to hold a 9"-11" profile mattress Mattress Not Included