25-inch Garage Door Extension Spring

Discover the National Hardware 25‑Inch Garage Door Extension Spring, a robust 140‑lb coil engineered for 7‑foot high residential doors. Finished in a sleek black coating, this spring delivers reliable lift while the integrated safety cable prevents over‑travel, ensuring a quiet and secure operation every time you open or close your garage.

Why it matters: This heavy‑duty extension spring replaces worn‑out components, restoring the original balance of your door and reducing strain on the opener. Its precise 25‑inch length fits standard door assemblies, delivering smoother motion and extending the lifespan of your entire garage system.

• 25‑Inch Coil Design: Perfectly sized for most 7‑ft high doors, providing optimal tension and lift performance.
• 140 lb Load Capacity: Handles the weight of typical residential garage doors, guaranteeing dependable operation.
• Integrated Safety Cable: Prevents sudden spring release, enhancing user safety and protecting surrounding hardware.
• Durable Black Finish: Resists corrosion and UV exposure, maintaining appearance and functionality for years.
• Easy Installation: Comes boxed with all necessary hardware, allowing DIY enthusiasts to replace the spring quickly.

Ready for reliable performance: Choose this National Hardware extension spring to eliminate noisy, uneven door movement and enjoy a smoother, safer garage experience. Engineered for durability and backed by a trusted brand, it’s the smart replacement for any standard 7‑foot garage door needing a fresh, powerful spring.