The kind of power - Select a motor with enough power to raise your door. If you have a double door, have at least a motor with 1/2 hp. A large electric motor is likely to last longer. Search for an electric motor with a "soft" begin and quit. It runs much more quietly and decreases the wear and tear.
A common 2 automobile garage stands for approximately 20% of the useful area in a typical house. In addition, there are currently over 40 million solitary household garages in the U.S.