Measure the diameter of 1 16 of an inch.
Garage door extension spring dimensions.
7 doors require a 25 long spring that stretches up to 42 67 total length when the door is closed 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.
Sometimes this number is written on the winding or stationary cone.
A functional garage door system lifts the door in a balanced manner.
Extension springs and torsion springs are the two kinds of garage door springs you ll find in garage doors.
Torsion spring inside diameter and overall length in many cases the inside diameter of the torsion spring will be indicated on the stationary cone in between the two springs at the midpoint of the door.
Left wind springs are located on the right hand side of the door and right wind springs are located on the left side.
Torsion springs turn as you open and close your garage door.
For an 8 foot high door the spring would be 28 inches long with a 48 inch stretch.
Springs in general last about 10 14 years or 15 20 thousand.
A failing unbalanced or poorly matched spring.
Plug end extension spring is a p528 28 in.
If your garage door is taller than 7 ft please call our helpdesk at 1 800 731 0261 for assistance.
Once you know the total weight of your garage door using a bathroom scale for doors under 300 pounds you can use the chart below to see the color extension spring you need.
2 means the inside diameter is two inches etc.
Torsion springs and garage door weight.
Extension springs do as their name suggests.
For a complete list of garage door extension springs for 7 8 9 10 11 12 13 and 14 tall doors click here determine the door weight and door height.
If you see a 1 75 on the cone the spring has a 13 4 inch diameter.
Starting with our easy to use selection tool you can easily find the garage door extension springs you are looking for the 1st time.
Door with an initial tension of 165 lbs.
Most extension springs for 7 foot high doors are 25 inches long with a 42 inch stretch.
Plug end extension spring is a holmes spring replacement for heavier 1 piece tilt up canopy style garage doors.
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Torsion springs need to provide enough force to equal the weight of the door.
1 75 means the inside diameter is 1 inches.
How to weight your garage door.
An unbalanced door is a sign of.
Measure the height of the garage door.
Two p528 springs one on each side of the door can handle a 105 lbs.
Torsion springs vs extension springs.