Guides & Resources
Everything you need to find, measure, and install the right spring
Spring Size Chart
| Door Size (H x W) | Wire Size | Spring Length | Inside Diameter |
|---|---|---|---|
| 7' x 8' | .207 | 21" | 1.75" / 2" |
| 7' x 9' | .218 | 23" | 2" |
| 7' x 10' | .225 | 24" | 2" |
| 7' x 12' | .234 | 26" | 2" |
| 7' x 16' | .243 | 28" | 2" |
| 8' x 8' | .218 | 24" | 2" |
| 8' x 9' | .225 | 26" | 2" |
| 8' x 10' | .234 | 27" | 2" |
| 8' x 12' | .243 | 28" | 2" |
| 8' x 16' | .262 | 30" | 2" |
| 9' x 16' | .270 | 32" | 2" |
| 10' x 16' | .282 | 34" | 2" |
* These are general guidelines. Actual spring requirements may vary based on door weight and manufacturer. Call us for help selecting the right spring.
How to Measure Your Garage Door
Measure Door Height
Measure the total height of the door from floor to top. Standard heights are 7', 8', 9', or 10'.
Measure Door Width
Measure the width of the door opening. Common widths are 8', 9', 10', 12', 16', or 18'.
Check Wire Size
Look at the existing spring. The wire diameter is usually printed on the cone or can be measured with calipers.
Measure Spring Length
Measure the spring from one end to the other (not including cones). This is the coil length when relaxed.
Check Inside Diameter
The ID is the inside diameter of the spring coils. Standard is 1.75" or 2". Measure across the inside of the coil.
Safety Tips
WARNING: Garage door springs are under extreme tension
Quick Installation Tips
Replace in Pairs
Always replace both springs even if only one broke. This ensures balanced tension and prevents the second spring from breaking soon after.
Count the Turns
When winding new springs, the number of turns varies by spring size. A general rule is spring length ÷ wire diameter. Call us for exact specifications.
Check the Cables
While replacing springs, inspect cables for fraying. Worn cables should be replaced at the same time to prevent future issues.
Lubricate Regularly
Apply garage door lubricant (not WD-40) to springs, hinges, and rollers every 6 months. This extends the life of all components.
Not Sure Which Spring You Need?
Call us and we'll help you find the perfect spring for your door