Fire Door Frames, and Category C - Proprietary Frames
Wood Door Frame for installation in 20 minute locations in Steel/Wood Stud Drywall or Masonry Opening. For neutral pressure applications, or for positive pressure applications, fire rated wood Category "A" doors or Category "B" doors with a Category "G" Edge-Sealing System installed are required.
| Maximum Size of Openings: |
Single Swing: 3'6" wide x 8'0" high |
 |
Pairs: 7'0" wide x 8'0" high |
| Minimum Wall Thickness: |
4- 9/16" |
Testing Standards: UBC-7-2-97/UL-10C (Positive Pressure).
Evaluated to the following:
This category includes frames not based on ANSI-A155.1/UL-63 construction Type (such as aluminum, wood, light gauge steel, composite, etc.). These listings will reference specific door types for which each frame is qualified. All frames listed in this section may be used in positive pressure assemblies per the terms and limitations of the individual listing.
All frames in this category are identified by a label or marking bearing the wording, "Listed Fire Door Frame", the Warnock Hersey Certification Mark, "UBC-7-2-97/UL-10C. Frames rated at less than 3 hours will have a time interval noted on the label/marking. See Positive Pressure Section Header for more information.
