L.J. Smith is the largest stair parts manufacturing company in the country. Many of L.J. Smith creations were designed to provide stair installers with alternative methods for building stronger stairways. Others were developed to broaden our product offering, providing unlimited design possibilities for any stairway.
National Gypsum is one of the largest gypsum board producers in the world. While gypsum boards are the company's primary product, the company also has interior finishing products, roofing products, join compound, cement board and more. National Gypsum is recognized in the industry for customer service and product quality.