Regardless of your specific application, C.H.I. offers a premium insulated door product guaranteed to deliver years of dependable operation. Our micro-grooved sandwich models are constructed in a variety of gauges and are available in both polyurethane and polystyrene insulation options for those applications that demand the best in thermal efficiency and value. And, if you’re looking to enhance your buildings aesthetics, our sandwich doors are available powder-coated in over 182 different colors!