{"product_id":"fire-rated-glass-custom-cut-20-45-60-90-minute-fire-ratings","title":"Fire Rated Glass — Custom Cut | 20, 45, 60 \u0026 90 Minute Fire Ratings","description":"\u003ch2\u003eFire Rated Glass — Custom Cut by Certified Glass Professionals\u003c\/h2\u003e\n\u003cp\u003eProtect your building and stay code-compliant with genuine fire-rated glass, custom cut to size by Chicago Glass Company of Illinois. We stock products rated from \u003cstrong\u003e20 to 90 minutes\u003c\/strong\u003e and carry both fire-protective and fire-resistive options.\u003c\/p\u003e\n\u003ch3\u003eWhy Buy From Us?\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eWe're licensed, bonded glass contractors — not a middleman\u003c\/li\u003e\n\u003cli\u003eStock on hand for the most common sizes — no waiting weeks for a distributor\u003c\/li\u003e\n\u003cli\u003eExpert cutting: fire rated glass requires precision — improper cuts void fire ratings\u003c\/li\u003e\n\u003cli\u003eWe can advise on the right product for your code requirement\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eAvailable Fire Ratings\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e20-Minute\u003c\/strong\u003e — Corridor windows, interior sidelites\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e45-Minute\u003c\/strong\u003e — Door lites, stairwell windows\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e60-Minute\u003c\/strong\u003e — 1-hour fire door assemblies\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e90-Minute\u003c\/strong\u003e — Stairwell enclosures, high-hazard applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMeets ASTM E119 \/ NFPA 257 \/ IBC requirements\u003c\/li\u003e\n\u003cli\u003eAvailable in clear and lightly textured finishes\u003c\/li\u003e\n\u003cli\u003eCustom sizes up to 24 sq ft per lite (larger available — call us)\u003c\/li\u003e\n\u003cli\u003eUL listed products available upon request\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eNote: Fire rated glass must be installed in a rated frame assembly.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhich fire rating do I need?\u003c\/strong\u003e\u003cbr\u003eIt depends on the assembly. Tell us where it's going (door, sidelite, stairwell, corridor) and we'll match it to your IBC requirement. Don't guess — improper specification can fail inspection.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFire-protective vs fire-resistive — what's the difference?\u003c\/strong\u003e\u003cbr\u003eFire-protective glass blocks flame and smoke. Fire-resistive blocks flame, smoke, AND radiant heat — required when the assembly exceeds 25% of the wall. We carry both.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan it be used in a regular frame?\u003c\/strong\u003e\u003cbr\u003eNo. Fire-rated glass MUST be installed in a rated frame assembly to maintain the listed rating.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs it impact-rated for safety glazing?\u003c\/strong\u003e\u003cbr\u003eSome products are dual-rated (fire + CPSC 16 CFR 1201). Tell us if you need safety-rated and we'll spec accordingly.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow fast can you ship?\u003c\/strong\u003e\u003cbr\u003e5–10 business days for standard sizes. Same-week for emergency code corrections — call (708) 800-7120.\u003c\/p\u003e\n\u003ch3\u003eRelated from Chicago Glass Company\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/wire-glass-custom-cut-wired-safety-glass-georgian-diamond-pattern\"\u003eWire Glass — Georgian or Diamond\u003c\/a\u003e — for historic-match 45-minute fire applications in restoration work\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/laminated-glass-custom-cut-safety-security-laminated-glass\"\u003eLaminated Glass — Custom Cut\u003c\/a\u003e — when fire-resistive (radiant-heat blocking) is required or when fire + security need to combine\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/tempered-glass-custom-cut-safety-tempered-glass-any-size-any-thickness\"\u003eTempered Glass — Any Size\u003c\/a\u003e — for non-rated locations in the same building that need safety glazing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eQuestions?\u003c\/strong\u003e Call \u003ca href=\"tel:7088007120\"\u003e(708) 800-7120\u003c\/a\u003e · Email \u003ca href=\"mailto:service@chicagoglasscompany.com\"\u003eservice@chicagoglasscompany.com\u003c\/a\u003e · Visit \u003ca href=\"https:\/\/www.chicagoglassco.com\" target=\"_blank\"\u003ewww.chicagoglassco.com\u003c\/a\u003e\u003c\/p\u003e","brand":"Chicago Glass Company of Illinois","offers":[{"title":"20-Minute","offer_id":52524461162772,"sku":null,"price":65.0,"currency_code":"USD","in_stock":true},{"title":"45-Minute","offer_id":52524461195540,"sku":null,"price":85.0,"currency_code":"USD","in_stock":true},{"title":"60-Minute","offer_id":52524461228308,"sku":null,"price":100.0,"currency_code":"USD","in_stock":true},{"title":"90-Minute","offer_id":52524461261076,"sku":null,"price":120.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1011\/0101\/1220\/files\/ba-security-glazing-after-DCejMCvY_435ff0e2-8ee3-4e8f-b550-312d2de00c55.jpg?v=1780220346","url":"https:\/\/customglass.shop\/products\/fire-rated-glass-custom-cut-20-45-60-90-minute-fire-ratings","provider":"Chicago Glass Company of Illinois","version":"1.0","type":"link"}