Who is the largest garage door company?

The largest garage door company in North America is Clopay, which is largest residential garage door manufacturer, followed by Overhead Door Corporation and Amarr as major players. Clopay, founded in 1964 and headquartered in Mason, Ohio, owned by Griffon Corporation, is largest garage door manufacturer in US, producing over 1 million doors annually, with manufacturing plants in Ohio and other locations, sold through Home Depot, dealers, and Costco, with market share estimated 30 to 40 percent of residential market. Overhead Door Corporation, founded in 1921, which owns Overhead Door brand and Wayne Dalton, is also one of largest, with global presence and commercial and residential doors. Amarr, owned by ASSA ABLOY, is also large with significant market share. In Canada, largest garage door company is Garaga, based in Quebec, which is largest Canadian manufacturer. Worldwide, largest garage door company is arguably Hörmann Group from Germany, which is largest garage door manufacturer globally with presence in Europe and North America. So who is largest garage door company depends on region, but in US residential market, Clopay is largest, in Canada Garaga is largest Canadian-made, and globally Hörmann is largest, with Clopay considered largest in North America by volume and sales, offering widest distribution through Home Depot and dealers.