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140 lb. Garage Door Extension Spring- 8' Door

140 lb. Garage Door Extension Spring- 8' Door

Best price now

$22.46at Home DepotChecked 6 h ago

17% under what the other stores charge

Compared across 3 stores. Prices are checked against each store and labelled with when.

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Price facts

  • Lowest price today: $22.46 at Home Depot (checked Nov 15, 2026).
  • Checked at 3 stores.

Our take on the 140 lb. Garage Door Extension Spring- 8' Door

This is a single extension spring for an 8-foot-high garage door, rated at 140 lb of pull and coded blue under the DASMA color standard. It is built from spring wire rated for at least 10,000 cycles, with double-looped ends and a 27 to 48 inch stretch range. It suits a do-it-yourselfer replacing a worn or broken spring on a standard 8-foot door. Against lighter-rated springs, the 140 lb rating covers heavier doors, but it is a single spring, so a door that uses two needs a matched pair.

Best forReplacing a broken spring on an 8-foot doorDoors that need 140 lb of lift per springOwners matching springs by DASMA blue color codeDIY garage door repair
Pros
  • Rated for at least 10,000 cycles
  • DASMA blue color code makes matching easy
  • Double-looped ends for secure mounting
  • Fits 8-foot-high doors
  • 27 to 48 inch stretch covers standard setups
Cons
  • Sold as a single spring, not a pair
  • 140 lb rating only fits doors sized for it
  • Extension springs store a lot of energy and need safety cables
  • No instructions included

140 lb. Garage Door Extension Spring- 8' Door prices at every store

  • Home DepotNew

    In stock

    $22.46Free shippingChecked 6 h ago
    Visit Home Depot
  • American Garage Door SupplyNew

    In stockReturn policy

    $26.99Checked 6 h ago
    Visit American Garage Door Supply
  • eBayNew

    Availability unknownSold by tomeryo

    $27.63Checked 6 h ago
    Visit eBay

Also available at

  • AmazonCheck price at Amazon

Store links may earn us a commission.

140 lb. Garage Door Extension Spring- 8' Door price history

Lowest price we've seen: $22.46 on Nov 15 at Home Depot. Tracked across 3 stores since Nov 15.

About the 140 lb. Garage Door Extension Spring- 8' Door

This extension spring is made for garage doors that are 8 feet high. It is rated at 140 lb. of pull and is color coded blue under the DASMA color code.

It is made from high quality spring wire and has double looped ends. The spring is rated for a minimum of 10,000 cycles.

Door height
8 ft.
Pull
140 lb.
Stretch
27" to 48"
Inside diameter
1.304 in.
Ends
Double looped
Cycle rating
Minimum of 10,000 cycles
Color code
Blue (DASMA)
Material
High quality spring wire

Questions and answers

How do I know this spring fits my door?
It is made for 8-foot-high doors and rated at 140 lb of pull. Match the DASMA blue color code on your old spring and the door's weight rating before buying.
Is one spring enough for my door?
This listing is one spring. Many garage doors use two extension springs, so check your door and replace both at the same time if it uses a pair.
How long should the spring last?
It is rated for a minimum of 10,000 cycles. One cycle is one open and close, so a door used a few times a day lasts years.
What is the stretch range?
The spring stretches between 27 and 48 inches. Set the door's travel so the spring stays within that range.
Do I need safety cables?
Yes. Extension springs should always be run through safety cables so a broken spring is contained. They are not included.
Can I install it myself?
Replacing extension springs is less hazardous than torsion springs, but the springs are under tension. If you are unsure, have a garage door technician do it.
Where is the 140 lb. Garage Door Extension Spring- 8' Door cheapest?
At Home Depot, for $22.46, 17% under what the other stores charge, as of our latest check.
Where can I buy the 140 lb. Garage Door Extension Spring- 8' Door?
4 stores we checked sell it, including American Garage Door Supply, Home Depot, eBay, Amazon.

Stores we've priced the 140 lb. Garage Door Extension Spring- 8' Door at

  • The Home Depot deals and prices

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