- Buy 2 for $23.34 each and save 27%
- Buy 6 for $22.16 each and save 30%
- Buy 12 for $21.05 each and save 34%
- Buy 24 for $19.99 each and save 37%
- All springs are coated for extended life and rated for a minimum of 10,000 cycles.
- Double loop ends for longer life.
- Highest quality available.
- DASMA color coded.
- Extension springs require 2 springs to pull the listed weight. Example: it takes two 100lb white springs to lift a 100lb door.
- Made in USA.
Details
- All springs are coated for extended life and rated for a minimum of 10,000 cycles.
- Double loop ends for longer life.
- Highest quality available.
- DASMA color coded.
- Extension springs require 2 springs to pull the listed weight. Example: it takes two 100lb white springs to lift a 100lb door.
- Made in USA.
Tips & Information on Ordering Extension Springs
To weigh your door:
- Raise the garage door to the fully open position. Be sure to disconnect your automatic garage door opener, if you have one.
- Use C-clamps or vice grips under bottom rollers to keep the door in the open position. With tension completely off extension springs, disconnect springs from track support.
- Place a bathroom scale under center of door.
- Remove C-clamps or vice grips and lower door by hand. Lower door slowly by hand onto the scale. This may require more than one person, doors are very heavy and may crash down if you cannot hold it.
- Record the weight of the door.
- If door weight exceeds capacity of the scale, use 2 bathroom scales and use a 2x4 with one end on one scale and the other on a second scale with the door perpendicular to the 2 x 4. Be sure to take into account how much the scale reads with the 2x4 on it and deduct from weight you end up with. Add the weight reading from both scales together to get the total weight of the garage door.
WARNING - Garage door springs, cables, brackets, and other hardware attached to the springs are under very high tension and, if handled improperly, can cause serious injury. Only a qualified professional or a mechanically experienced person should adjust them, but only by carefully following the manufacturer's instructions.
More Information
| SKU | 200-40180 |
|---|---|
| Manufacturer | Re-Source Industries |
| Prop 65 | ⚠ WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer or birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov |
| Wire Size | .192 Orange |
| Spring Length | 17.750 |
Questions 1
-
#1 Customer asks
My garage door is 7.5 ' high, so I assume that I order the springs for an 8' door? Also, is between 160 - 170 lbs, so order for 170 lbs? I need an answer so I can order asap. Thanks.
262 people already voted for this question.
-
Great question — and one that comes up a lot. Here's the straightforward answer:
Door Height → Spring Length:
Yes, for a 7'5" or 7'6" door, you'd use springs rated for a 7-foot door, not 8-foot. Extension springs are matched to the door height, and a 7.5' door falls into the 7' spring category. Using 8' springs would result in springs that are too long and won't cycle correctly — they'd be under-stretched at full open, providing insufficient counterbalance.
The reason: extension springs for a 7' door have a stretched length that accommodates doors up to about 7'6". An 8' spring is designed for doors 7'7" to 8'0".
Actually — let me clarify, because this can vary by manufacturer. The general industry standard:
7' door → 25" long springs (unstretched)
8' door → 27" long springs (unstretched)
The easiest way to confirm is to measure the existing springs while the door is closed (springs fully extended). That measurement will tell you exactly which length you need.
Door Weight:
For weight, you always want to round UP to the next available weight rating. So yes, if the door weighs between 160–170 lbs, ordering springs rated for 170 lbs is correct. Under-rating the springs means they'll be overstressed and fail prematurely. Going slightly over on the weight rating is always safer than going under.
-