Temp20 1/4″ Clear Tempered Fire-Rated Safety Glass, 20-Minute Labeled

Usually Ships: 3-5 Business Days
  • 1/4″ Thick Clear Tempered Fire-Rated Glass
  • Safety Glazing Material – CAT II Impact-Rated
  • 20-Minute Fire-Rated – Etched w/ QAI Classification

Available Options:


TEMP20™ – 20-Minute Fire Protective 1/4″ Thick Tempered Glass for Doors

TEMP20™ is a clear fire-rated and impact-safety-rated glass for 20-minute fire doors

  • 1/4″ thick tempered fire-rated glass
  • Superior optical clarity – clear and wireless
  • Economical fire and safety rated glass
  • Tempered glass for safety and security
  • Etched with fire and impact safety classification on each piece
  • Meets NFPA 80 requirements for certification and labeling
  • This glass is cut to size then heat treated (tempered) to achieve its safety rating properties
  • STC 28 rating
  • Classified and labeled by QAI Laboratories
  • Impact-safety rated to ANSI Z97.1 and CPSC 16 CFR1201 (Cat I and II)
  • Manufactured in USA

Classified and labeled by QAI Laboratories. All fire tests performed in accordance with UL 10C (positive pressure, without hose stream) NFPA 252, NFPA 80. All listing information is subject to change.

Labeling: Each lite of TEMP20™ fire-protective glass shall be permanently labeled according to code requirements with product and manufacturer’s name, QAI certification mark, fire rating, etc.

Please refer to IBC code Chapter 7 (International Building Code) for fire-rated glass requirements and limitations. Frame, door, and/or hardware must also be fire-rated. Fire-rating requirements must match the glazing requirements in order for the assembly to fully meet code requirements. Please refer to manufacturers’ specifications. Please Consult with your door and frame manufacturer’s procedures, for their maximum glass size tested. Interpretation of building and fire codes may vary. Consult with the local authority having jurisdiction to determine appropriate standards in your area. Trudoor assumes no liability or responsibility for any damage to person or property resulting from or incident to the use of the products that we provide. Trudoor assumes no liability or responsibility for misspecified and/or misordered materials. Glass is made to order and non-returnable or refundable.

TEMP20™ is a trademark of Proscience Inc.

Glass is cut to order and non-returnable or refundable.



Architectural Applications – Door Vision Lites

Glass Thickness

1/4" (6 mm)

Glass Impact Safety Rating

ANSI Z97.1 and CPSC 16CFR1201 (Cat. I and II)

UL Label Classification (Fire-Rating)

20-Minute QAI Label

Glass Fire-Rating

20 Minutes – Certified by QAI Laboratories

Glass Appearance


Glass Light Transmission

Approx. 86%

Glass Weight

3.0 lbs/ft

Glass Approvals

ANSI Z97.1 and CPSC 16 CFR1201 (Cat I and II), ANSI/UL10B, ANSI/UL10C

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Temp20 1/4″ Clear Tempered Fire-Rated Safety Glass, 20-Minute Labeled