Camaflexi Beds are constructed of 100% Solid Pine Wood. Pine is a superior choice of wood for furniture, as it resists the normal shrinking and swelling that occurs from seasonal changes of humidity in the atmosphere. Wood shrinking and swelling are both major sources of visual and structural problems in furniture. However, pine wood is the leading choice of wood in furniture construction, since it resists both problems of shrinking and swelling. In addition, Camaflexi Beds are sourced from renewable pine plantations. We plant new trees for every tree harvested!