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Garage Door Spring Size Chart

Torsion springs are incredibly popular for garage doors. Although extension springs have frequently been chosen by home builders for their low cost, torsion springs are gaining popularity. Many new homes are made with torsion spring garage door systems. Eventually, garage door springs do wear out and need to be replaced. In this post, we’re sharing with you a garage door spring size chart for torsion springs. 

Garage Door Spring Size Chart: Torsion Springs

The chart is based on information from the Door & Access Systems Manufacturers Association (DASMA). DASMA is a leading organization in our industry that created the guidelines and specifications for garage door springs. This system aids in proper identification for repair, ordering, and warehousing purposes ensuring that the right spring arrives to the customer. 

Read more about torsion springs and download a copy of DASMA’s technical garage spring color codes after reviewing the size chart below.

DOWNLOAD: DASMA Technical Data Sheet #171 – Official Color codes for Torsion and Extension Springs↗

Are You Sure You Have Torsion Springs?

Torsion springs are located on a bar above the garage door opening. 

Learn More: What Types of Garage Door Springs Are There?

The springs in a garage door system do the heavy lifting when it comes to opening the door. They provide needed support to the opener and cables when opening the door and help lower it gently as well. Because the springs work in every part of the process, they do eventually wear down and need to be replaced. 

Garage door springs can’t just be repaired. At a minimum some springs just need to be re-tensioned but at worst they need to be replaced because they can become dangerous and break. 

Learn More: Garage Door: Torsion Springs vs Extension Springs

A functional garage door system lifts the door in a balanced-manner. 

An unbalanced door is a sign of:

• a failing,
• unbalanced, 
• or poorly matched spring. 

Torsion Springs and Garage Door Weight

Torsion springs need to provide enough force to equal the weight of the door. This is sometimes referred to as the spring’s lift power–how much weight the torsion spring can lift. The spring’s individual measurements are also important, they determine the spring’s lift. 

In addition to knowing the garage door’s weight and height and the spring’s color-code, knowing how to measure the spring’s dimensions can help you order the right springs. 

To order the correct springs for your garage door you’ll need to know a few details about your door system. Those details include:

1. Inside Diameter
2. Wire Size
3. Spring Wind Direction
4. Spring Length

Wire Size

Knowing the spring’s length can help you find the wire size on the chart above. Measure 10 coils to the nearest 1/16”. Change the fraction into a decimal and divide by 10; this is the wire size. For a more accurate measurement start at the 1” mark on your ruler. 

Find more tips on measuring torsion springs at IDCSpring.com↗.

Heritage Garage Door has served Southern California homeowners for over 30 years. Explore our website to learn more about us or contact us to schedule a repair, replacement, or installation service.