Say goodbye to poor quality, squeaky mattress box springs. Developed by BedInABox.com, our exclusive 8" American Hardwood Mattress Foundation combines U.S. grown poplar hardwood and a high quality quilted cover, to create a beautiful and strong foundation that is made in the USA. By using poplar hardwood, we created a foundation with smooth, splinter free finished wood that is kiln dried to 8%, ensuring it doesn"t warp or split over time. Other foundations are made with pine which has around 18% moisture content. The high moisture content of the pine can cause it to warp, and in turn, squeak over time. Once assembled, this foundation fits right into your metal frame or bed and provides the perfect support for any mattress type.