Garage Door Extension Springs for 7' High Doors – 25" × 42" – Pair
Replacement extension spring pair with approximately 25" relaxed length and 42" of rated stretch for compatible 7-foot-high sectional garage doors.
These 25" × 42" garage door extension springs are designed for compatible 7-foot-high sectional garage doors. Each spring measures approximately 25 inches in its relaxed position and is designed for approximately 42 inches of extension as the garage door closes.
What Does 25" × 42" Mean?
25" is the approximate relaxed spring length. 42" refers to the spring's rated extension or stretch beyond its relaxed length. It does not mean the spring is only 42" long when fully extended. At 42" of extension, a 25" spring is approximately 67" long.
Key Features
- Designed for compatible 7' high sectional garage doors
- Approximately 25" relaxed spring length
- Approximately 42" rated spring extension
- Available in multiple garage door weight ratings
- Helps counterbalance the weight of the garage door
- Available with compatible end styles depending on selected spring
- Sold as a pair for left- and right-side replacement
Select by Door Weight:
Choose the spring rating specified for your garage door's verified dead weight. Do not select a replacement spring based only on door height, spring color, or physical length.
Weight Rating Notice:
Spring-rating terminology can vary by manufacturer. When this listing identifies a pair by total door weight, select the pair that matches the verified weight of the door. For example, a 100 lb. door requires the option identified for a 100 lb. door.
Choose the Correct End Style:
Match the replacement springs to the existing spring and hardware configuration. Depending on the application, extension springs may use double-loop, clipped, or other compatible end styles.
Confirm Before Ordering:
Verify the 7' door height, actual door weight, relaxed spring length, rated stretch, end style, spring quantity, pulley arrangement, and existing hardware before selecting a replacement.
Replace Springs as a Pair:
When replacing a two-spring extension system, replace both springs with matching springs to help maintain balanced lifting force. Proper safety containment cables should also be installed through extension springs and securely anchored.
Safety:
Garage door extension springs, cables, and pulleys operate under high tension. Secure the garage door and completely release spring tension according to the door manufacturer's instructions before service. Professional installation is recommended.
