{"product_id":"build-fractal-series-back-extension-new","title":"BUILT Strength Fractal Series Back Extension (New)","description":"\u003cstyle\u003e\n  .bs-wrap *{box-sizing:border-box;margin:0;padding:0}\n  .bs-wrap{font-family:'Barlow',sans-serif;color:#1a1a1a;max-width:700px}\n  .bs-badge{display:inline-block;background:#1a1a1a;color:#f0ebe3;font-size:11px;font-weight:500;letter-spacing:.12em;text-transform:uppercase;padding:4px 10px;border-radius:3px;margin-bottom:16px}\n  .bs-desc{font-size:15px;line-height:1.8;color:#444;margin-bottom:24px}\n  .bs-desc strong{color:#1a1a1a;font-weight:500}\n  .bs-divider{border:none;border-top:1px solid #e5e5e5;margin:24px 0}\n  .bs-section-label{font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:#999;font-weight:500;margin-bottom:12px}\n  .bs-muscles{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:8px}\n  .bs-muscle-tag{font-size:12px;font-weight:500;padding:5px 13px;border-radius:20px;background:#fff7ed;color:#92400e;border:1px solid #fcd9a0}\n  .bs-muscle-tag.sec{background:#f5f5f5;color:#666;border-color:#e0e0e0}\n  .bs-specs-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:24px}\n  .bs-spec-card{background:#f7f7f5;border-radius:8px;padding:14px 16px}\n  .bs-spec-label{font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:#999;margin-bottom:4px}\n  .bs-spec-val{font-family:'Barlow Condensed',sans-serif;font-size:20px;font-weight:600;color:#1a1a1a}\n  .bs-spec-sub{font-size:12px;color:#888;margin-top:3px}\n  .bs-feat{display:flex;align-items:flex-start;gap:12px;padding:12px 0;border-top:1px solid #efefef}\n  .bs-feat:last-child{border-bottom:1px solid #efefef}\n  .bs-feat-icon{width:30px;height:30px;border-radius:50%;background:#fff0f0;display:flex;align-items:center;justify-content:center;flex-shrink:0;margin-top:1px}\n  .bs-feat-icon svg{width:14px;height:14px;stroke:#dc2626;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}\n  .bs-feat-name{font-size:14px;font-weight:500;color:#1a1a1a;margin-bottom:3px}\n  .bs-feat-desc{font-size:13px;color:#666;line-height:1.6}\n  .bs-span2{grid-column:span 2}\n\u003c\/style\u003e\n\u003cdiv class=\"bs-wrap\"\u003e\n\u003cp class=\"bs-desc\"\u003eThe BUILT Strength Fractal Series Back Extension strengthens the erector spinae and posterior chain through a \u003cstrong\u003eseated extension movement on a biomechanically accurate motion path with adjustable range of motion and seat height\u003c\/strong\u003e — dialing in the correct extension arc and starting position for each user's body proportions before the first rep. The contoured back pad delivers consistent contact across the full extension, and cushioned leg supports stabilize the lower body throughout the movement.\u003c\/p\u003e\n\u003cp class=\"bs-desc\"\u003eA 280 lb selectorized stack provides serious progressive loading for lumbar and posterior chain strength development — well above the 160–200 lb stacks common on back extension machines — and a \u003cstrong\u003e664 lb commercial-grade steel frame\u003c\/strong\u003e delivers the structural mass for stable sustained extension training in professional environments. New.\u003c\/p\u003e\n\u003chr class=\"bs-divider\"\u003e\n\u003cp class=\"bs-section-label\"\u003ePrimary muscles targeted\u003c\/p\u003e\n\u003cdiv style=\"margin-bottom: 10px;\" class=\"bs-muscles\"\u003e\n\u003cspan class=\"bs-muscle-tag\"\u003eErector Spinae\u003c\/span\u003e \u003cspan class=\"bs-muscle-tag\"\u003eMultifidus\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cp class=\"bs-section-label\"\u003eSecondary muscles\u003c\/p\u003e\n\u003cdiv style=\"margin-bottom: 0;\" class=\"bs-muscles\"\u003e\n\u003cspan class=\"bs-muscle-tag sec\"\u003eGlutes\u003c\/span\u003e \u003cspan class=\"bs-muscle-tag sec\"\u003eHamstrings\u003c\/span\u003e \u003cspan class=\"bs-muscle-tag sec\"\u003eCore Stabilizers\u003c\/span\u003e\n\u003c\/div\u003e\n\u003chr class=\"bs-divider\"\u003e\n\u003cp class=\"bs-section-label\"\u003eKey features\u003c\/p\u003e\n\u003cdiv class=\"bs-feat\"\u003e\n\u003cdiv class=\"bs-feat-icon\"\u003e\u003csvg viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M12 2l8 4v6c0 5-4 9-8 10-4-1-8-5-8-10V6l8-4z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"bs-feat-name\"\u003eBiomechanically Accurate Motion Path\u003c\/div\u003e\n\u003cdiv class=\"bs-feat-desc\"\u003eThe guided extension path follows the natural spinal extension arc — keeping the erector spinae under consistent, correctly directed load through the full movement without the lateral drift or compensation that unguided back extension equipment allows.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"bs-feat\"\u003e\n\u003cdiv class=\"bs-feat-icon\"\u003e\u003csvg viewbox=\"0 0 24 24\"\u003e\u003cline y2=\"6\" x2=\"14\" y1=\"6\" x1=\"4\"\u003e\u003c\/line\u003e\u003ccircle r=\"2\" cy=\"6\" cx=\"18\"\u003e\u003c\/circle\u003e\u003cline y2=\"12\" x2=\"20\" y1=\"12\" x1=\"4\"\u003e\u003c\/line\u003e\u003cline y2=\"18\" x2=\"14\" y1=\"18\" x1=\"4\"\u003e\u003c\/line\u003e\u003ccircle r=\"2\" cy=\"18\" cx=\"18\"\u003e\u003c\/circle\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"bs-feat-name\"\u003eAdjustable ROM \u0026amp; Seat Height\u003c\/div\u003e\n\u003cdiv class=\"bs-feat-desc\"\u003eRange of motion and seat height both adjust independently — setting the correct extension arc and starting position for each user's torso length and flexibility before the first rep begins.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"bs-feat\"\u003e\n\u003cdiv class=\"bs-feat-icon\"\u003e\u003csvg viewbox=\"0 0 24 24\"\u003e\u003crect rx=\"2\" height=\"8\" width=\"14\" y=\"11\" x=\"5\"\u003e\u003c\/rect\u003e\u003cpath d=\"M5 11V7a2 2 0 0 1 2-2h10a2 2 0 0 1 2 2v4\"\u003e\u003c\/path\u003e\u003cline y2=\"21\" x2=\"8\" y1=\"19\" x1=\"8\"\u003e\u003c\/line\u003e\u003cline y2=\"21\" x2=\"16\" y1=\"19\" x1=\"16\"\u003e\u003c\/line\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"bs-feat-name\"\u003eContoured Back Pad \u0026amp; Cushioned Leg Supports\u003c\/div\u003e\n\u003cdiv class=\"bs-feat-desc\"\u003eA contoured back pad maintains consistent contact across the full extension arc, and cushioned leg supports stabilize the lower body — keeping the user correctly positioned and the erector spinae engaged throughout every rep.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"bs-feat\"\u003e\n\u003cdiv class=\"bs-feat-icon\"\u003e\u003csvg viewbox=\"0 0 24 24\"\u003e\u003crect rx=\"2\" height=\"18\" width=\"18\" y=\"3\" x=\"3\"\u003e\u003c\/rect\u003e\u003cline y2=\"9\" x2=\"21\" y1=\"9\" x1=\"3\"\u003e\u003c\/line\u003e\u003cline y2=\"9\" x2=\"9\" y1=\"21\" x1=\"9\"\u003e\u003c\/line\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"bs-feat-name\"\u003e280 lb Stack · 664 lb Commercial Frame\u003c\/div\u003e\n\u003cdiv class=\"bs-feat-desc\"\u003eA 280 lb selectorized stack supports serious progressive lumbar and posterior chain loading well above standard back extension machine capacities. The 664 lb commercial-grade frame delivers the stability and durability for sustained professional use.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003chr class=\"bs-divider\"\u003e\n\u003cp class=\"bs-section-label\"\u003eSpecifications\u003c\/p\u003e\n\u003cdiv class=\"bs-specs-grid\"\u003e\n\u003cdiv class=\"bs-spec-card\"\u003e\n\u003cdiv class=\"bs-spec-label\"\u003eDimensions (L × W × H)\u003c\/div\u003e\n\u003cdiv class=\"bs-spec-val\"\u003e55\" × 42\" × 58\"\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"bs-spec-card\"\u003e\n\u003cdiv class=\"bs-spec-label\"\u003eMachine Weight\u003c\/div\u003e\n\u003cdiv class=\"bs-spec-val\"\u003e664 lb\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"bs-spec-card\"\u003e\n\u003cdiv class=\"bs-spec-label\"\u003eWeight Stack\u003c\/div\u003e\n\u003cdiv class=\"bs-spec-val\"\u003e280 lb\u003c\/div\u003e\n\u003cdiv class=\"bs-spec-sub\"\u003ePin-select selectorized\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"bs-spec-card\"\u003e\n\u003cdiv class=\"bs-spec-label\"\u003eCondition\u003c\/div\u003e\n\u003cdiv class=\"bs-spec-val\"\u003eNew\u003c\/div\u003e\n\u003cdiv class=\"bs-spec-sub\"\u003eFractal Series · BUILT Strength\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"bs-spec-card bs-span2\"\u003e\n\u003cdiv class=\"bs-spec-label\"\u003eDesign \u0026amp; Adjustability\u003c\/div\u003e\n\u003cdiv class=\"bs-spec-val\"\u003eAdj. ROM \u0026amp; Seat · Contoured Back Pad\u003c\/div\u003e\n\u003cdiv class=\"bs-spec-sub\"\u003eBiomechanical motion path · Adjustable ROM \u0026amp; seat height · Contoured back pad · Cushioned leg supports · 280 lb stack\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"bs-spec-card\"\u003e\n\u003cdiv class=\"bs-spec-label\"\u003eFrame\u003c\/div\u003e\n\u003cdiv class=\"bs-spec-val\"\u003e11-Gauge (3mm) Steel\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- ============================================================\nSEO FIELDS — paste these into Shopify's Search Engine Listing section\n============================================================\n\nPage title (max 60 chars):\nBUILT Strength Fractal Back Extension Machine | New\n\nMeta description (max 160 chars):\nNew BUILT Strength Fractal Series Back Extension. 280 lb selectorized, adjustable ROM and seat height, contoured back pad, 664 lb commercial frame for lumbar development.\n\nTags (comma separated):\nFractal Series back extension, selectorized back extension, back extension machine, BUILT Strength, erector spinae machine, lumbar machine, 280lb back extension, commercial back machine, new gym equipment, seated back extension, adjustable ROM back machine, Fractal Series\n\n============================================================ --\u003e","brand":"BUILT Strength","offers":[{"title":"Default Title","offer_id":47730455773424,"sku":"GW008","price":3295.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0510\/0981\/4682\/files\/GW008__BUILT-Strength-Fractal-Series-Back-Extension-New__media-01_6362ffeb-ffd6-4b44-9be4-57446a6353be.png?v=1787664739","url":"https:\/\/www.buildagym.com\/products\/build-fractal-series-back-extension-new","provider":"Build A Gym","version":"1.0","type":"link"}