Garage Door Extension Spring – 7' High Door, 110 lb Pull Capacity, 25" x 42", Double-Loop Ends, Black Coated, USA Made

7' High Door (25-42)

SSC Garage Door Extension Springs are manufactured in the USA and designed for residential and commercial overhead door applications. Each spring is rated for an industry standard minimum lifecycle of 10,000 cycles.

• • Made in the USA
  • Pulls 100 lbs. doors. Comes with double looped ends. Tan DASMA color coded.
  • Combine any 7' or 8' H extension springs & stock torsion springs to achieve quantity pricing
  • All springs rated for a minimum of 10,000 cycles
  • All springs are coated black
  • DASMA color coded

• Description

  This garage door extension spring is designed for 7-foot-high residential and light commercial sectional garage doors requiring approximately 110 lbs of counterbalance force. Manufactured in the USA, this spring helps offset the weight of the door, reducing strain on the opener, cables, pulleys, and other moving components while providing smooth and controlled door operation. The spring features double-looped ends for increased durability and secure attachment to the extension spring system.

  Key Features

  • Designed for 7' high garage doors
  • 110 lb pull rating
  • 25" relaxed length × 42" stretch length
  • Double-loop end design for improved durability
  • Black protective coating
  • DASMA color coded
  • Made in the USA
  • Rated for a minimum of 10,000 operating cycles
  • Compatible with standard extension spring pulley systems

  Compatibility

  Compatible with:

  • Residential sectional garage doors using extension spring systems
  • 7-foot-high garage doors
  • Standard extension spring pulley and safety cable assemblies
  • Single and double-car garage doors when matched to door weight requirements

  Not compatible with:

  • Torsion spring systems
  • Doors requiring a different spring weight rating
  • 8-foot-high doors unless specifically engineered for the application

  Applications

  • Replacement of worn or broken extension springs
  • Garage door balance restoration
  • Preventative maintenance on extension spring systems
  • Residential overhead door repairs

  Specifications

  Specification	Value
  Spring Type	Extension Spring
  Door Height	7 ft
  Pull Rating	110 lbs
  Length	25 in
  Stretch Length	42 in
  End Style	Double Loop
  Finish	Black Coated
  Color Code	Tan (DASMA)
  Cycle Rating	10,000+ Cycles
  Country of Manufacture	USA

   

  How This Part Fits Into the Garage Door System

  Extension springs serve as the counterbalance mechanism on extension spring garage door systems. When the garage door closes, the springs stretch and store energy. As the door opens, that stored energy assists in lifting the door's weight, reducing the workload on the garage door opener and helping the door move smoothly.

  This spring works together with:

  • Extension spring cables
  • Pulleys and sheaves
  • Safety cables
  • Bottom brackets
  • Garage door opener

  A properly sized extension spring is critical for maintaining correct door balance. An undersized spring can overload the opener, while an oversized spring may cause unsafe door operation. Industry practice recommends replacing extension springs in pairs to maintain balanced lifting force and consistent door travel.

  
  

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