{"product_id":"36-x-80-knock-down-steel-door-frame-commercial-grade","title":"36\" x 80\" Knock-Down Steel Door Frame – 14 Gauge Hollow Metal KD Frame","description":"\u003ch2\u003e36\" x 80\" Knock-Down Hollow Metal Door Frame – 14 Gauge Steel\u003c\/h2\u003e\n\u003cp\u003eA commercial-grade \u003cstrong\u003e36\" x 80\" knock-down (KD) steel door frame\u003c\/strong\u003e for 1-3\/4\" thick doors in drywall walls. Available in \u003cstrong\u003eleft hand or right hand\u003c\/strong\u003e and three jamb depths. Ships compact, assembles on site, and gives a clean, professional finish for new construction and renovations.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e14 gauge steel\u003c\/strong\u003e – heavy-duty hollow metal built for high-traffic openings\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKnock-down design\u003c\/strong\u003e – ships flat, sets into finished or framed drywall walls\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHinge prep\u003c\/strong\u003e – reinforced for 3 standard 4-1\/2\" hinges\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStrike prep\u003c\/strong\u003e – welded strike reinforcement for standard latch hardware\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2\" face trim\u003c\/strong\u003e – clean, finished look on both sides\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUL labeled\u003c\/strong\u003e – for use in fire-rated openings; pairs with UFD's 90-minute fire-rated stock steel doors\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWhich Jamb Depth Do I Need?\u003c\/h2\u003e\n\u003cp\u003eMeasure your finished wall thickness (studs + drywall on both sides) and pick the matching jamb depth:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e3-3\/4\"\u003c\/strong\u003e – 2-1\/2\" metal studs with one layer of 5\/8\" drywall each side\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4-7\/8\"\u003c\/strong\u003e – 3-5\/8\" metal studs with one layer of 5\/8\" drywall each side\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e6-1\/8\"\u003c\/strong\u003e – 3-5\/8\" metal studs with two layers of 5\/8\" drywall each side\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eNot sure? Send us your wall thickness and we'll confirm before you order.\u003c\/p\u003e\n\u003ch2\u003eLeft Hand or Right Hand?\u003c\/h2\u003e\n\u003cp\u003eStand on the outside of the opening (the side the door swings away from). If the hinges are on your left, order \u003cstrong\u003eLeft Hand\u003c\/strong\u003e; if they're on your right, order \u003cstrong\u003eRight Hand\u003c\/strong\u003e. See the door swing chart in the photos – a Right Hand frame also works as a Left Hand Reverse, and a Left Hand frame as a Right Hand Reverse.\u003c\/p\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOpening size:\u003c\/strong\u003e 36\" x 80\" (6'-8\" tall)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHanding:\u003c\/strong\u003e Left Hand or Right Hand (select above)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eJamb depths:\u003c\/strong\u003e 3-3\/4\", 4-7\/8\", 6-1\/8\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e 14 gauge hollow metal steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFace trim:\u003c\/strong\u003e 2\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDoor thickness:\u003c\/strong\u003e 1-3\/4\" (steel or wood)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHinges:\u003c\/strong\u003e 3 × 4-1\/2\", located 5\", 35-1\/4\", 65-1\/2\" down from the inside top of the frame to the top of each hinge\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWall type:\u003c\/strong\u003e Interior drywall\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWhere It's Used\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eApartment buildings and multifamily renovations\u003c\/li\u003e\n\u003cli\u003eOffices, retail and commercial buildings\u003c\/li\u003e\n\u003cli\u003eSchools, healthcare and institutional projects\u003c\/li\u003e\n\u003cli\u003eUtility, storage and mechanical rooms\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eIs a knock-down frame as strong as a welded frame?\u003c\/strong\u003e\u003cbr\u003eOnce installed and anchored, a 14 gauge KD frame performs well in most interior openings. Welded frames are preferred for masonry walls and very heavy-use openings – ask us if you're unsure.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I install it in an existing wall?\u003c\/strong\u003e\u003cbr\u003eYes. Knock-down frames are designed to slip over finished drywall, which makes them a common choice for renovations.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo you have the matching door?\u003c\/strong\u003e\u003cbr\u003eYes – we stock 36\" x 80\" steel doors, 1-3\/4\" thick, 90-minute fire rated, prepped to match these hinge locations.\u003c\/p\u003e\n\u003ch2\u003eBuilt by Universal Fireproof Door\u003c\/h2\u003e\n\u003cp\u003eA Brooklyn steel door manufacturer since 1924. UL Listed and NYC MEA Approved. Pick up in Brooklyn (1171 Myrtle Ave) or Brentwood (75 Emjay Blvd), or call 718-841-0767 for help choosing the right frame.\u003c\/p\u003e","brand":"Universal Fireproof Door","offers":[{"title":"Left Hand \/ 3 3\/4\"","offer_id":56581539692847,"sku":"3680KDF-LH-334","price":207.0,"currency_code":"USD","in_stock":true},{"title":"Left Hand \/ 4 7\/8\"","offer_id":56581539725615,"sku":"3680KDF-LH-478","price":207.0,"currency_code":"USD","in_stock":true},{"title":"Left Hand \/ 6 1\/8\"","offer_id":56581539758383,"sku":"3680KDF-LH-618","price":207.0,"currency_code":"USD","in_stock":true},{"title":"Right Hand \/ 3 3\/4\"","offer_id":56581539791151,"sku":"3680KDF-RH-334","price":207.0,"currency_code":"USD","in_stock":true},{"title":"Right Hand \/ 4 7\/8\"","offer_id":56581539823919,"sku":"3680KDF-RH-478","price":207.0,"currency_code":"USD","in_stock":true},{"title":"Right Hand \/ 6 1\/8\"","offer_id":56581539856687,"sku":"3680KDF-RH-618","price":207.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0927\/3507\/8703\/files\/kd1.png?v=1789521388","url":"https:\/\/ufdoors.com\/products\/36-x-80-knock-down-steel-door-frame-commercial-grade","provider":"UFDoor","version":"1.0","type":"link"}