D Frank Door &Window Systems

Springs, cables, and other hardware work to counterbalance the door’s weight while lifting and closing the door. It’s important to understand that these components are all under extremely high tension and should never be tampered with.

You probably know most new homes these days are outfitted with electronic garage doors. Garage doors are available in many sizes, materials and styles. Care to guess how many U.S. companies are involved in garage door manufacturing? If you guessed almost 500, you're right.