Menus are sometimes hierarchically organized, allowing navigation through different levels of the menu structure. Selecting a menu entry with an arrow will expand it, showing a second menu (the sub-menu) with options related to the selected entry.
Torsion springs are normally mounted horizontally above the opening of your garage door. When you pull the door down, cables attached to the bottom corners actually force the springs to wind up, in turn energizing the system.
Weighing A Garage Door. If you are wondering how to weigh a garage door, we can surely help. Weighing a garage door is necessary to confirm the dimensions of a torsion spring. Along with the information regarding the height of the garage door, the drums and track radius, the weight of the garage door will help you in determining the correct type of springs that would be required to balance your door.