Fortress Wood Products, 101 Commonwealth Blvd E, Martinsville, VA 24112, US

Located in Greensboro, N.C., Fortress Wood Products provides pressure-treated lumber and board stock for commercial and residential building applications. It is a wood preserving company that primarily caters to independent contractor-based lumberyards. The company s quality control division provides various tests in laboratories for treatment and proper retention of preservatives. Its plants operate automated treating systems and produces lumber that is resistant to damage from insects, weather and decay. Its lumber and board stock are used by professional contractors and commercial builders. The company s lumber is also used for building decks, patios, picnic shelters, board fencing, farm structures, railings, porches, playground equipment and recreation facilities.