Garage door extension spring 25 relaxed position 67 stretched for overhead sectional doors fits all standard garage doors for safety add sk7136 not included for 120 lbs.
120 pound garage door spring.
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This is why two 100 pound extension springs are needed to lift a 100 pound garage door.
However the pulleys on the garage door reduce the amount of weight carried by the extension spring so the extension spring really only has to lift half of its weight in this case 50 pounds.
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Professional series springs not from china torsion spring s for torsion systems set above the garage door.
Garage door extension spring 7 door.
First our garage door springs are for sectional garage door with two extension springs.
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Garage door extension spring with 120 lbs duty rating and green color code works with most all residential garage door brands includes 123 2 in safety cable.
The strogest we have is the sk7159 180 lb.
If your door is 210 pounds you would need a pair on for each side of the 210 pound white springs.
We we offer a vast selection of wire and spring sizes and both left and right wind torsion.
Winding bars are 18 in length and are also advised when winding and un winding springs.
Garage door extension spring 7 door.
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.
Dura lift 207 x 2 x 25 torsion garage springs yellow left right wound 4 8 out of 5 stars 55 gdn garage door torsion spring 30 length 2 inside diameter 0 25 wire size right wound.
If your door is 200 lb you need two 200 lb springs.
If there are multiple springs on your garage door we strongly recommend replacing both torsion springs.
Garage door extension spring 7 door.
Garage door extension spring 8 door.