Hollow Metal Doors and Frames /Other/GoodDesign/Opener%20Images/Hollow%20Metal%20Opener_002%20915x400.jpg Hollow Metal Door and Frame Hollow Metal Door and Frame Durable and attractive hollow metal doors and frames offered by CECO DOOR and CURRIES are available in a variety of sizes, gauges and aesthetic profiles. Elegant doors with high-definition embossed panels as well as wood grain patterns can be manufactured with continuously welded, seamless edges. Many door core types are available with fire-, bullet-, and blast-resistant ratings and hurricane and tornado resistant certifications. Factory glazed and acoustic doors achieve up to 66 Sound Transmission Class (STC) rating. CECO DOOR and CURRIES have industry-leading operable energy efficiency ratings and one of the highest recycled steel usage rates in the industry.