UL-Listed Garage Door Martin Door ISO Quality Standard   Martin Door Manufacturing is registered to ISO 9001, meeting international quality standards.  Martin is the only garage door manufacturing company in the world to have the dual designation of the UL listing with the ISO 9001 registration. An active approach to quality and safety has been a hallmark of Martin Garage Doors, since its beginning in 1936.  An official with the Consumer Product Safety Commission recently told a reporter from the Salt Lake Tribune that Martin builds its garage doors to a higher standard than the rest of the industry.