One Garage Door Spring Or Two

Door is a single car door either 8 7 or 8 8 made of aluminum or other lightweight material then it will.

One garage door spring or two.

If you have very large heavy door then two or more springs will be required. Require only one spring. Added pressure and stress on the center bracket or center bearing can cause premature failure. The spring stays fastened inside the shaft by the stationary cone which matches the shape of the shaft.

Why we use oil tempered torsion springs. The garage door has one or two springs nested inside of the shaft. Many garage door installers avoid using two torsion springs when they install a new door in order to save money at the time. Many builders install one spring on garage door when they install the door.

If the garage door is in the open position and starts coming down and one of the two torsion springs break in mid travel there is usually enough power in the other torsion spring for the garage door opener to either bring the garage door back up or let it down slowly. In most cases on double door 16 feet wide and larger we recommend replacing with a two spring system. Doors with one spring place more pressure on the single spring than doors with two springs. The second spring will break it s just a matter of time which is usually within 6 months.

One spring systems utilize a larger spring that puts added stress on the other garage door system components. If your garage door was originally set up with only one torsion spring then you are perfectly fine with having only one spring put back on the door. If your garage door has two springs pulling the door up then definitely have both replaced. The cross section of the shaft is not circular one quarter of the shaft extends outward to form an edge.