{"product_id":"100-lbs-garage-door-extension-spring-replacement-kit-durable-double","title":"100-lbs. Garage Door Extension Spring Replacement Kit - Durable Double","description":"\u003cp\u003eIn this review the reviewer looks at the 100-lbs. Garage Door Extension Spring Replacement Kit and explains why it is a solid, no-nonsense replacement for light one-car garage doors. The bottom line: this kit is best for homeowners who need a matched pair of extension springs rated for 100 lbs and want a corrosion-resistant, long-lasting option with clear instructions and basic safety gloves included. Installation is straightforward for anyone comfortable with garage door maintenance, and the electrophoretic coating plus ASTM-A228 spring steel suggest a product built to last.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003eCapacity:\u003c\/strong\u003e Each package supplies a matched pair rated for 100 lbs, ensuring the door has balanced lifting force when both springs are replaced together.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eLength and travel:\u003c\/strong\u003e The springs measure 25 in long with a fully stretched length of 72 in, giving the correct tension and range for many 7 ft high light fiberglass doors.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eDurability:\u003c\/strong\u003e Made from professional ASTM-A228 spring steel and heat-treated, the coils are built to resist fatigue and handle frequent door cycles.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eCorrosion resistance:\u003c\/strong\u003e The electrophoretic black coating survives 300 hours of salt spray testing, reducing the need for maintenance in damp environments.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eInstallation kit:\u003c\/strong\u003e Each box includes installation instructions and a pair of non-slip gloves to keep hands clean and improve grip during the work.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eDouble loop ends:\u003c\/strong\u003e The double looped ends add sturdiness at attachment points, which helps reduce wear where the spring connects to eye-bolts and pulleys.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis kit is aimed at DIY-minded homeowners with a 1-car light fiberglass garage door roughly 8' x 7' or 9' x 7', or any 7 ft high door that requires a 100-lb pair of extension springs. It fits situations where both springs should be replaced to restore balanced operation and reduce stress on the opener.\u003c\/p\u003e\n\u003cp\u003eIt is not intended for heavy commercial doors, torsion-spring systems, or doors that require different ratings or custom lengths. Anyone uncomfortable working with tensioned springs or without basic tools should hire a professional installer for safety.\u003c\/p\u003e\n\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n \u003cli\u003eHigh-quality ASTM-A228 steel and heat treatment give reliable spring performance and longevity.\u003c\/li\u003e\n \u003cli\u003eElectrophoretic coating improves corrosion resistance and keeps the springs looking clean after installation.\u003c\/li\u003e\n \u003cli\u003eComes as a matched pair with gloves and instructions, making it a convenient one-box replacement.\u003c\/li\u003e\n \u003cli\u003eDouble loop ends provide sturdier attachment to eye-bolts and pulleys than single-loop alternatives.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n \u003cli\u003eMixed feedback on overall build quality suggests a small chance of variability between batches, so inspect parts carefully on arrival.\u003c\/li\u003e\n \u003cli\u003eNot suitable for non-extension or higher-capacity garage door systems; check measurements and ratings before buying.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n \u003ctr\u003e\n\u003ctd\u003eProduct type\u003c\/td\u003e\n\u003ctd\u003eGarage door extension spring kit\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eCapacity\u003c\/td\u003e\n\u003ctd\u003e1 pair rated for 100 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eSpring length\u003c\/td\u003e\n\u003ctd\u003e25 in (fully stretched 72 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eEnd type\u003c\/td\u003e\n\u003ctd\u003eDouble loop ends\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eCoating\u003c\/td\u003e\n\u003ctd\u003eElectrophoretic black coating\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eASTM-A228 spring steel, heat-treated\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003ePackage contents\u003c\/td\u003e\n\u003ctd\u003ePair of springs, non-slip gloves, installation instruction\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThis replacement kit is a pragmatic choice for homeowners with a 7 ft high light fiberglass single-car door who want a matched, corrosion-resistant pair of 100-lb extension springs. It offers durable materials, useful accessories, and the added security of double loop ends, making it good value for those able to perform a safe DIY replacement.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWill this fit my 8' x 7' fiberglass garage door?\u003c\/strong\u003e\u003cbr\u003eYes, it is designed for 1-car light fiberglass doors such as 8' x 7' and 9' x 7' when a 100-lb pair is required.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the kit include installation tools?\u003c\/strong\u003e\u003cbr\u003eThe package includes non-slip gloves and installation instructions but not specialty tools; basic garage door tools are still needed.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eShould I replace both springs at once?\u003c\/strong\u003e\u003cbr\u003eYes, replacing springs in pairs is recommended to maintain balanced operation and avoid uneven wear on the door and opener.\u003c\/p\u003e","brand":"Blesseras","offers":[{"title":"Default Title","offer_id":48679546028251,"sku":"B0D3D8HDZ6","price":42.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/817dbyYT4uL._AC_SL1500.jpg?v=1778661882","url":"https:\/\/gearmusthave.com\/products\/100-lbs-garage-door-extension-spring-replacement-kit-durable-double","provider":"GearMustHave","version":"1.0","type":"link"}