Garage Door Springs

For over 35 years, Iowa Spring has supplied the overhead garage door industry. We have the staff and innovative tools to customize springs for a particular application. We are an ISO 9001:2008 certified manufacturer and members of the Spring Manufacturers Institute (SMI), International Door Association (IDA), and Door & Access Systems Manufacturing Association International (DASMA). See our capabilities below.

We offer SAME DAY SHIPPING for orders 300 lbs. or less placed by 11 a.m. (CST)* • Ships UPS or Spee-dee (if available)

Allow us the opportunity to quote your springs!
Fill out our RFQ form (link above) or send us a blueprint or sample.

Learn more with our Garage Door Industry capability sheet.

Manufacturing capabilities:

Wire type

  • Oil Tempered (ASTM A229)
  • Hard Drawn (ASTM A227)
  • Hard Drawn Galvanized (ASTM A227)
  • Chrome Silicon (ASTM A401)
  • Music (ASTM A228)
  • 302/304 Stainless Steel (ASTM A313)


  • .170” - .625” wire diameter
    *Same day shipping on .187” - .437”
  • Inside diameters up to 7.625”
  • Lengths up to 144”

Additional Services

  • Hooking (extension)
  • Heat applied coating (black)
  • Custom coil sizes
  • Custom ends
  • Custom packaging

Product Samples:

Torsion Spring Torsion Spring:

  • Provide product coned or unconed
  • Heat applied coating (black), stencil, and winding line
  • Custom ends types available to fit cones

Aluminum Cone Sets

Cone Set

  • 1.75”. 2.00”, 2.625”, 3.375”, 3.75”, 5.25”, and 6”
  • Duplex and triplex assemblies available
  • Purchase installed or uninstalled

Extension Spring Extension Spring:

  • For 7’, 8’, 9’, and 10’ high doors
  • Weight ranges 40 - 400 lbs.
  • End options –
    • Double coil loops
    • Single hook ends
    • Clips