Place scale under the garage door on the side of the door with the broken extension spring.
How to weigh a garage door with extension springs.
Color coding is the consistent measure for extension springs a 150lb red spring for a 7 door could have been manufactured in several different sizes if you are not sure what color your old spring was use a bathroom scale to weigh the door while it is unsprung and disconnected from your door opener.
How to weigh a garage door with extension springs.
Realize and understand the risks before undertaking any repair.
You may need to use a 2x4 or some other object to pry the garage door open.
If your garage door has extension springs the springs stretch out as the door closes and retract as the door opens the garage door industry has released a standard color chart for the strength pull for these springs as seen in the table below.
Garage door springs must properly match the door s weight.
Repairing a garage door is a dangerous task.
Weigh your garage door.
Measure door the height.
This can still be done when only one extension spring is broken.
Many extension spring weights are indicated by the color code painted on the end of the spring.
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.
The best practice is to contact a professional unless you re extremely comfortable handling a garage door.
Determine your garage door weight and height.
Many of the older extension springs may not have visible paint color on either end of the spring.
Your health and safety is the 1 concern.
In this post we ll focus on extension springs for sectional doors because they are more common.
However spring manufacturers can use different color codes to indicate a specific pulling weight of an extension spring.
Springs for one piece doors are wound more tightly and operate differently than extension springs for sectional doors.
How to measure extension springs for your garage door.
The pull weight of an extension spring is determined by the color code found on the end of the spring.
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If the color has worn out on your extension springs you can attempt to weigh the garage door using the steps below and find the right color coded springs using the chart provided.
3 springs are only sold in pairs.