The outstanding features and benefits of the Haas 800 Series have made it the door of choice among commercial and industrial architects. The 800 series commercial insulated steel doors feature a full 3″ pressure-injected core of high-density CFC-free polyurethane foam insulation, with a calculated R-Value of 25.8 – the highest in the commercial door industry. The 800 series is exceptionally strong and reinforced with roll-formed galvanized steel struts and double-end hinges as required to meet or exceed local wind load specifications. It is the ideal door for locations that require both maximum energy efficiency and durable strength. See additional information above about the 800 Series and contact Shank Door for more information.