Norco Universal Door Systems have set the highest standard of quality in the industry for bottom rolling doors. For five decades, Norco has worked with architects, engineers and building suppliers in the design, building and installation of universal door systems for aviation, military, industrial, marine, specialty applications and retrofits. Our technical expertise, quality construction and after-sale support has established Norco as an industry leader. Norco offers a variety of bottom rolling airplane hangar and industrial door configurations to meet the needs of different applications around the world. Center parting, single direction, full floating and 90 hangar door systems as well as tail door systems. Keywords: hangar doors, bottom rolling doors, aviation, sliding doors, sliding hangar doors, fbo, aircraft hangar doors, airplane hangar doors, sliding hangar doors