Clopay Corporation, a Griffon Company, includes Clopay Building Products and Clopay Plastic Products. Clopay Building Products Company is the nation's largest manufacturer of residential garage doors and a leading supplier of industrial and commercial sectional doors. Clopay Plastic Products Company is a leader in the development and production of embossed barrier and breathable plastic films for the healthcare and hygienic markets as well as specialty graphics arts films. Two business units focused on anticipating and exceeding the expectations of our customers - the Clopay Corporation.