You also need to know the size of the wire itself.
Measure wound garage door spring.
Plug end extension spring is a p528 28 in.
In order to order new springs you will need to measure as accurately as possible your current spring s and find the.
Generally when looking from within the garage if the spring is on the left side it is right wound and vice versa.
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To measure the wire size measure the length of 10 coils of the spring.
Take all your measurements from the broken spring.
Two p528 springs one on each side of the door can handle a 105 lbs.
While this might seem difficult to comprehend measuring the wire size is actually as easy as running a tape measure along the distance between 10 and 20 coils.
For other measurements talk to a garage door repair professional or find a 10 coil measurement chart online.
If you have 1 1 4 inches in a 10 coil count the wires are 0 125.
Spring orientation if ordering just one spring left wound or right wound.
They call it a right spring but when you are looking at the door from the inside it goes on the left side and vice versa.
If your 10 coil count measures 2 1 2 inches you have 25 inch wires.
Spring length how long each spring is 4.
Here s how to tell if your garage door torsion spring is a left wound spring or a right wound spring as seen from the back of the door.
Measure the spring only from coil to coil.
Inside diameter 90 of doors have a 2 0 inside diameter 3.
Plug end extension spring is a holmes spring replacement for heavier 1 piece tilt up canopy style garage doors.
Door with an initial tension of 165 lbs.
Measure the overall length of your garage door spring unwound.
Springs are usually stretched an extra 1 8 so the total addition to the spring length is eight coils or two inches.
The spring will grow 7 5 coils or 7 5 x 250 for the coil size or 1 7 8.
What can we say it can appear a bit complicated.