Garage Door Extension Spring Replacement Size

If your garage door is taller than 7 ft please call our helpdesk at 1 800 731 0261 for assistance.

Garage door extension spring replacement size.

In most cases the stretch of the extension spring should be half of the door height. The holmes hally p730 30 in. Plug end extension spring the holmes hally p730 30 in. This is the wire size.

Sometimes this number is written on the winding or stationary cone. Change the fraction into a decimal and divide by 10. For an 8 foot high door the spring would be 28 inches long with a 48 inch stretch. Two p730 springs one on each side of the door can handle a 90 lbs.

This means for a 7 foot high door 84 inches the spring stretch would be 42 inches. Measure the diameter of 1 16 of an inch. Measure the height of the garage door. For a more accurate measurement start at the 1 mark on your ruler.

Most extension springs for 7 foot high doors are 25 inches long with a 42 inch stretch. If you see a 1 75 on the cone the spring has a 13 4 inch diameter. Measure 10 coils to the nearest 1 16. Plug end extension spring is a spring replacement for 1 piece tilt up canopy style garage doors.

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 110 lbs. 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.