From its Pennsylvania operation, Highwood USA makes outdoor furniture and home-and-garden pieces from proprietary synthetic lumber designed to look like wood without cracking, peeling, or rotting. The company says it has been innovating in the poly-lumber market for more than 20 years, with its furniture made in the USA by Pennsylvania craftsmen and its materials also supplied for OEM applications. Its flagship Highwood HDPS material is made from recycled plastics and carries a 12-year residential warranty.