The quality of all our commercial & industrial garage door hardware is exceptional. Still, a choice must be made depending on the degree of sturdiness required and the number of daily open/close cycles. Here are some recommended typical systems:

Our sturdiness scale

HARDWARE:	LIGHT DUTY 14-gauge steel tracks and mounting brackets* Pull rope Single hinges	HEAVY DUTY 13-gauge steel tracks and mounting brackets* Pull chain Single or double hinges	SUPER HEAVY DUTY 12-gauge steel tracks and mounting brackets* Pull chain or chain hoist Single or double hinges Reinforcement bars

* The lower the gauge number, the thicker the steel. The spring acts as a counterweight to facilitate the opening of the door. Choosing a spring depends mainly on the daily number of open/close cycles your door will undergo.

SPRINGS:	LIGHT DUTY 10,000-cycle springs	HEAVY DUTY 25,000- to 100,000-cycle springs	SUPER HEAVY DUTY Springs for over 100,000 cycles