Your door opens unevenly.
Garage door extension spring stretches more than the other.
Keep in mind that a long metal spring is being stretched to the point that it will lift your entire garage door which can weigh several hundred pounds.
Most extension springs for 7 foot high doors are 25 inches long with a 42 inch stretch.
The springs have a safety cable inside to prevent injury in case of accidental breakage.
When one extension spring breaks you and a friend may be able to get the door open as you still have the support of another spring.
With tension completely off extension springs disconnect springs from track support.
Extension springs the other kind of garage door springs are torsion springs run alongside the upper garage door tracks the ones that run parallel to the ceiling and stretch or extend out and back to help lift the garage door.
Extension springs the type that stretch and are on each side of the garage door can be another story.
If your door has two extension springs and one side is opening faster than the other it probably means one spring has already failed and the other is likely to follow suit in relatively short order.
8 doors require a 27 spring that stretches up to 48 75 total length when to door is closed extension springs are a non returnable item call customer service if you have any questions.
Extension springs 2 pack are made of spring steel and designed to be mounted perpendicular above the horizontal track of the garage door.
The moment you notice anything suspicious in the way your door is opening you need to call for assistance before someone gets hurt.
The overbuilt 90 lbs.
Again it s best to exercise caution and not do this more than you have to.
Ideal for single car garage doors.
Note that entire weight of door which could exceed several hundred pounds has to be lowered slowly by hand so more than one person is needed.
Step by step replacement of extension springs must be done with caution.
Extension springs stretch and contract as the door operates to counterbalance the weight of the door.
Remove c clamps or vice grips and lower door by hand.
Most residential garage doors only have two extension springs one on each side of the door.
Disconnect power and lifting arm of garage door opener.
The type of garage door spring you just replaced is called an extension spring.
Commercial doors however as well as some residential doors often have multiple springs installed on each side.
They stretch to provide lifting power for the garage door.
Starting with our easy to use selection tool you can easily find the garage door extension springs you are looking for the 1st time.
Fasten c clamps or vice grips under bottom rollers to retain door.
For an 8 foot high door the spring would be 28 inches long with a 48 inch stretch.
The rating of the safe stretch of any garage door spring will be a function of the material from which it was made.
