Commercial sites have needs that are very different from residential applications, frequency of use being the most common difference. Whereas the typical garage door opener may only be used a few times daily, a commercial operator may be used several times an hour. With this heavy industrial usage in mind, LiftMaster® has developed a full line of Trolley, Jackshaft and Hoist operators that provide the highest levels of strength and durability for sectional doors, rolling steel doors, vertical lift doors, rolling grilles & shutters. LiftMaster professionals can assess precisely what you need and install a reliable system your business can count on for many years to come. To learn more about the commercial operators and accessories that American Overhead Door & Dock offer, click on one of the links below.