Clopay Corporation, has partnered with LiftMaster, a top brand of professionally installed residential garage door systems and commercial door operators, to launch the Extreme Series Door powered by Liftmaster. This high-performance door system operates three times faster (at 24 inches per second) and five times longer (at 50,000 cycles) than standard doors, all for a more cost-effective investment than other high-speed doors. The Extreme Series Door will be offered by the Clopay, Cornell and Cookson brands.