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 spring wire chart.
Grey yellow blue what the door is made of ie.
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Torsion springs the chart is based on information from the door access systems manufacturers association dasma.
Many of the older extension springs may not have visible paint color on either end of the spring.
The size of the garage door width x height length of the spring over the coils how many coils make up the spring diameter of the spring and wire if possible any colour to the spring ie.
Spring length how long each spring is 4.
Torsion springs for sectional doors wire diameter inches color wire diameter mm wire diameter inches color wire diameter mm 1200 orange 3 00 mm 1181 2950 white 6 80 mm 2677 1250 light blue 2970 red 7 00 mm 2755.
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The spring will grow 7 5 coils or 7 5 x 250 for the coil size or 1 7 8.
Spring strength ippt charts use the following chart to determine the strength of each spring as measured in inch pounds per turn ippt.
To measure wire size insert the tape measure between the first two coils and stretch it to the last coil between the 10th and 11th coils.
For example on a seven foot high garage door a 34 spring comprised of 250 wire would grow eight coils when it is wound and stretched.
Spring orientation only worry about this if you have a 1 s.
In this post you ll find a garage door spring chart for torsion springs and extension springs.
Measure the thickness of the wire in the spring.
1988 by national association of garage door manufacturers and.
Garage door spring size chart.
Weighing your garage door is the best possible way to determine the proper springs needed for the door.
Dasma is a leading organization in our industry that created the guidelines and specifications for garage door springs.
Your garage door requires a specific total ippt which can be achieved by using one or multiple springs.
We will use the corrispoding weight you ordered to customize the perfect spring s to balance your garage door.
Metal wood or grp.
In order to order new garage door torsion springs you will need to measure as accurately as possible your current spring s and find the.
Springs are usually stretched an extra 1 8 so the total addition to the spring length is eight coils or two inches.
The following information is needed when ordering springs.