Garage Door Extension Spring Replacement Size

This means for a 7 foot high door 84 inches the spring stretch would be 42 inches.

Garage door extension spring replacement size.

Measure 10 coils to the nearest 1 16. Plug end extension spring the holmes hally p730 30 in. The holmes hally p730 30 in. Change the fraction into a decimal and divide by 10.

Plug end extension spring is a spring replacement for 1 piece tilt up canopy style garage doors. If your garage door is taller than 7 ft please call our helpdesk at 1 800 731 0261 for assistance. For a more accurate measurement start at the 1 mark on your ruler. This is the wire size.

Door with an initial tension of 110 lbs. How to weight your garage door. Most extension springs for 7 foot high doors are 25 inches long with a 42 inch stretch. 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. Knowing the spring s length can help you find the wire size on the chart above. For an 8 foot high door the spring would be 28 inches long with a 48 inch stretch. Left wind springs are located on the right hand side of the door and right wind springs are located on the left side.

Starting with our easy to use selection tool you can easily find the garage door extension springs you are looking for the 1st time. If you see a 1 75 on the cone the spring has a 13 4 inch diameter. Two p730 springs one on each side of the door can handle a 90 lbs.