HDI Railing Systems, founded in early 2002, is a provider of pre-engineered modular and ornamental railing systems for commercial and residential applications. Their products include a range of architectural and contractor services, regional sales representatives, and project managers to oversee projects from detailing to installation. HDI's railing systems are frequently specified for various establishments like hospitals, airports, corporate offices, hotels, universities, libraries, and museums. They offer a variety of materials for manufacturing, including stainless steel, and provide options for wood handrails and different infill materials such as glass, resin, and metal. HDI products are made in the U.S. and available worldwide.