Garage Door Springs Size Chart

Garage door springs play a vital role in the smooth and safe operation of your garage door. They provide the necessary tension to balance the weight of the door and allow for easy lifting and lowering. Choosing the right spring size is crucial to ensure proper functionality and longevity of your garage door system. Here's a comprehensive garage door springs size chart to help you determine the appropriate spring for your specific application.

Understanding Garage Door Spring Types

There are two main types of garage door springs: extension springs and torsion springs. Extension springs are mounted on either side of the garage door, while torsion springs are mounted above the door opening. Each type has its advantages and drawbacks, so it's important to consult a professional or refer to your garage door manufacturer's specifications to determine the most suitable option for your needs.

Extension Spring Size Chart

Extension springs are typically used for lighter garage doors and are measured by their length when fully extended. The following table provides a general guideline for extension spring sizes based on door weight:

Door Weight (lbs)	Spring Length (in)
80-100	30-34
101-120	34-38
121-140	38-42
141-160	42-46
161-180	46-50

Torsion Spring Size Chart

Torsion springs are used for heavier garage doors and are measured by their wire diameter and inside diameter. The following table provides a general guideline for torsion spring sizes based on door weight and dimensions:

Door Weight (lbs)	Spring Wire Diameter (in)	Spring Inside Diameter (in)
80-100	0.250	1-1/4
101-120	0.281	1-3/8
121-140	0.312	1-5/8
141-160	0.344	1-3/4
161-180	0.375	2

Factors to Consider

In addition to the door weight, there are other factors to consider when choosing the right garage door spring size, including:

Door height
Door width
Door material
Environmental conditions

Safety Precautions

Garage door springs are under high tension and can be dangerous to handle if not properly trained. It's recommended to consult a qualified technician for any spring-related repairs or replacements. Always wear safety gear, such as gloves and eye protection, when working with garage door springs.

By using the garage door springs size chart and considering the factors discussed above, you can determine the appropriate spring size for your specific garage door needs. This will help ensure smooth and safe operation, as well as extend the lifespan of your garage door system.