Boise Cascade L.L.C. is a manufacturer of engineered wood products, plywood, lumber and particleboard. The company also distributes a list of building materials, including wood products manufactured by the company s wood products division. Based in Boise, Idaho, the company's product portfolio also comprises adhesive sealants, concrete products, fasteners, flashing, vents, framing accessories, gypsum, insulating products, locks and roofing products. The firm's plywood mills are certified by the APA Engineered Wood Association. It is an affiliate member of the American Forest and Paper Association (APA), the Engineered Wood Association and the Hardwood Plywood and Veneer Association.