CS1 Type A Red is a commercial grade, galvanized steel stair system. It is one of the most popular stair systems due to its durability, corrosion resistance, and low-maintenance design. The system is made up of perforated steel pan steps, steel stringers, and adjustable balusters. The system is available in a variety of sizes and configurations and can be used to create a variety of custom stair designs. It is often seen in schools, restaurants, office buildings, and other commercial buildings. The parts are all prefabricated and ready to install making it a great choice for quick and easy installation.