{"product_id":"residential-garage-door-extension-hardware-kit-7-8-height-single-or-double-wide","title":"Residential Garage Door Extension Hardware Kit – 7′ \u0026 8′ Height, Single or Double Wide","description":"\u003cp data-start=\"510\" data-end=\"978\"\u003eGet reliable performance and safety with our \u003cstrong data-start=\"555\" data-end=\"606\"\u003eResidential Garage Door Extension Hardware Kits\u003c\/strong\u003e — engineered to support extension spring systems on standard homes. These professional-grade hardware boxes come complete with essential brackets, pulleys, rollers, cables, and installation hardware — available in \u003cstrong data-start=\"821\" data-end=\"891\"\u003e7′ single wide, 7′ double wide, 8′ single wide, and 8′ double wide\u003c\/strong\u003e options to suit your door size and requirements. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003chr data-start=\"980\" data-end=\"983\"\u003e\n\u003ch3 data-start=\"985\" data-end=\"1022\"\u003eWhat’s Included (By Variation)\u003c\/h3\u003e\n\u003cp data-start=\"1024\" data-end=\"1528\"\u003e\u003cstrong data-start=\"1024\" data-end=\"1062\"\u003e🔹 7′ Tall – Single Wide (EXTBX7S)\u003c\/strong\u003e\u003cbr data-start=\"1062\" data-end=\"1065\"\u003ePerfect fit for a \u003cstrong data-start=\"1083\" data-end=\"1113\"\u003e7′ high single garage door\u003c\/strong\u003e with extension spring setup. This kit includes:\u003cbr data-start=\"1161\" data-end=\"1164\"\u003e• Jamb brackets and bottom brackets\u003cbr data-start=\"1199\" data-end=\"1202\"\u003e• 11-ball nylon rollers for smooth travel\u003cbr data-start=\"1243\" data-end=\"1246\"\u003e• 3″ pulleys \u0026amp; fork assemblies\u003cbr data-start=\"1276\" data-end=\"1279\"\u003e• Cables and rope\u003cbr data-start=\"1296\" data-end=\"1299\"\u003e• Flag brackets and lift handle\u003cbr data-start=\"1330\" data-end=\"1333\"\u003e• Assortment of bolts, screws, warning stickers, and installation instructions\u003cbr data-start=\"1411\" data-end=\"1414\"\u003e• All necessary hardware to support extension springs and safety containment \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"1530\" data-end=\"1808\"\u003e\u003cstrong data-start=\"1530\" data-end=\"1568\"\u003e🔹 7′ Tall – Double Wide (EXTBX7D)\u003c\/strong\u003e\u003cbr data-start=\"1568\" data-end=\"1571\"\u003eDesigned for \u003cstrong data-start=\"1584\" data-end=\"1602\"\u003ewider 7′ doors\u003c\/strong\u003e, this complete extension hardware box includes everything listed above, sized for double wide door span and weight — providing balanced support and smoother operation. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"1810\" data-end=\"2113\"\u003e\u003cstrong data-start=\"1810\" data-end=\"1848\"\u003e🔹 8′ Tall – Single Wide (EXTBX8S)\u003c\/strong\u003e\u003cbr data-start=\"1848\" data-end=\"1851\"\u003eOptimized for \u003cstrong data-start=\"1865\" data-end=\"1896\"\u003e8′ high single garage doors\u003c\/strong\u003e, this extension spring hardware kit contains the same full set of components — configured to handle a taller door with reliable support, durability, and long-lasting performance. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"2115\" data-end=\"2436\"\u003e\u003cstrong data-start=\"2115\" data-end=\"2153\"\u003e🔹 8′ Tall – Double Wide (EXTBX8D)\u003c\/strong\u003e\u003cbr data-start=\"2153\" data-end=\"2156\"\u003eOur most robust kit for \u003cstrong data-start=\"2180\" data-end=\"2203\"\u003e8′ tall double wide\u003c\/strong\u003e residential doors with extension springs, this box includes all the necessary pulleys, rollers, cables, brackets, and fasteners you need for safe, reliable operation on larger residential doors. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003chr data-start=\"2438\" data-end=\"2441\"\u003e\n\u003ch3 data-start=\"2443\" data-end=\"2473\"\u003eKey Features \u0026amp; Benefits\u003c\/h3\u003e\n\u003cp data-start=\"2475\" data-end=\"3189\"\u003e✅ \u003cstrong data-start=\"2477\" data-end=\"2515\"\u003eComplete Extension Spring Hardware\u003c\/strong\u003e – Everything needed for a full install in one box — no last-minute parts to buy. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003cbr data-start=\"2634\" data-end=\"2637\"\u003e✅ \u003cstrong data-start=\"2639\" data-end=\"2682\"\u003eEngineered for Residential Garage Doors\u003c\/strong\u003e – Designed for standard doors with extension spring systems. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003cbr data-start=\"2781\" data-end=\"2784\"\u003e✅ \u003cstrong data-start=\"2786\" data-end=\"2815\"\u003eSmooth, Quiet Door Motion\u003c\/strong\u003e – Quality pulleys and nylon rollers reduce friction and noise. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003cbr data-start=\"2916\" data-end=\"2919\"\u003e✅ \u003cstrong data-start=\"2921\" data-end=\"2942\"\u003eSafe and Reliable\u003c\/strong\u003e – Includes proper safety and containment hardware for extension springs. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003cbr data-start=\"3053\" data-end=\"3056\"\u003e✅ \u003cstrong data-start=\"3058\" data-end=\"3088\"\u003eOptions for All Door Sizes\u003c\/strong\u003e – Select based on your door height and width for a proper fit. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003chr data-start=\"3191\" data-end=\"3194\"\u003e\n\u003ch3 data-start=\"3196\" data-end=\"3232\"\u003e🛠 Why Choose This Extension Kit\u003c\/h3\u003e\n\u003cp data-start=\"3234\" data-end=\"3501\"\u003eWhether installing a new extension spring system or replacing worn components, these kits are built for \u003cstrong data-start=\"3338\" data-end=\"3362\"\u003eease of installation\u003c\/strong\u003e, \u003cstrong data-start=\"3364\" data-end=\"3391\"\u003ebalanced door operation\u003c\/strong\u003e, and \u003cstrong data-start=\"3397\" data-end=\"3422\"\u003elong-term reliability\u003c\/strong\u003e, giving homeowners and professionals the confidence to complete the job right.\u003c\/p\u003e","brand":"MY Garage Door Parts","offers":[{"title":"8' H Double Wide Door","offer_id":47552596476143,"sku":"EXTBX8D","price":160.99,"currency_code":"USD","in_stock":true},{"title":"8' H Single Wide Door","offer_id":47552596508911,"sku":"EXTBX8S","price":155.99,"currency_code":"USD","in_stock":true},{"title":"7' H Double Wide Door","offer_id":47552596541679,"sku":"EXTBX7D","price":140.99,"currency_code":"USD","in_stock":true},{"title":"7' H Single Wide Door","offer_id":47552596574447,"sku":"EXTBX7S","price":135.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0436\/6965\/1608\/files\/ExtInstallKit.jpg?v=1769549064","url":"https:\/\/mygaragedoorparts.com\/products\/residential-garage-door-extension-hardware-kit-7-8-height-single-or-double-wide","provider":"MY Garage Door Parts","version":"1.0","type":"link"}