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60/90/120 Minute Fire-Rated, Safety-Rated Glass Floor System

This advanced glass floor system is impact-resistant and fire-rated for two hours - the only UL-classified glazed floor in North America with that level of protection. This system can be used as a durable, non-slip walking surface approved for 150 psf. It is available for interior and some exterior applications. Please contact SHT to learn if this system can be installed in an exterior application in your area.



  • Fire-rated for up to two hours
  • Allows glazing in spaces that previously would have required alternative opaque fire-stopping materials like concrete and corrugated steel
  • Consists of two-hour fire-rated Pilkington Pyrostop® glass; a tempered, laminated walking surface glass; and a steel framing grid
  • Brings daylight deep into building interiors, creating dramatic visual effects between different building levels
  • Individual glass panel sizes are approximately 48" x 50"
  • Protection against radiant and conductive heat transfer
  • Barrier to fire and smoke
  • Durable, non-slip walking surface
  • Modular system enables design creativity
  • Replacement of individual walking surface panels in case of impact breakage
  • Allows for decorative color frits and sandblasted glass without affecting fire rating
  • For use in interior and/or some exterior applications


Listed with Underwriters Laboratories, Inc.® File number is BXUV.C901. Tests performed in accordance with ASTM E-119, CAN/ULC-S101, UL 263 and NFPA 251. Approved for use in Los Angeles: LARR 25798.

Max size

Maximum Allowable Size Information

     Rating      Max. Exposed Glass Area Per Piece      Max. Exposed Glass Single Dimension
     45 Min.*      4,500 in2      95-1/4"
     60 Min.**      4,320 in2      89-13/16"
     120 Min.**      3,794 in2      110-3/8"

* 45 minute window systems are classified as an Opening Protective as per UL 9, with a maximum overall frame size of 109" x 120".

** 60 and 120-minute tests conducted per UL 263 / ASTM E-119. Therefore assembly is classified as
a wall assembly, and not subject to "opening" area limitations.

     Rating      Max. Single Door Leaf Size      Max. Exposed Glass Size Per Piece
     Fireframes Designer Series
     20 Minutes      42" x 96"      36" x 89"
     45 Minutes      42" x 96"      36" x 89"
     60 Minutes      42" x 96"      36" x 89"
     90 Minutes      42" x 96"      36" x 56-1/2" (divided lite door)
     Fireframes Heat Barrier Series***
     60 Minutes      42" x 96"      41–5/8" x 89–3/4"
     90 Minutes      42" x 96"      41–5/8" x 89–3/4"

***Where temperature rise door is required.

CAD Details

To obtain CAD files of any of these detail drawings, please use our CAD request form.


Download a PDF of our Care & Warranty Brochure.