Rolled Formed Steel Door Frame (18, 20, 22 gauge) (Knock Down) for installation in 20 minute locations (without hose stream) in steel/wood stud drywall or masonry openings.
Limitations
Steel Casing Trim*, labeled fire rated flush type particle board core wood door or positive pressure steel stiffened doors. For wood doors, use Pemko HSS2000 Intumescent Strip applied to frame or door at jambs, header and meeting edge of pairs. Minimum Throat Opening: 3-1/2"
| Rating |
Maximum Size |
Wall Construction |
Door Type |
| 20 minutes |
4'0" wide x 9'0" high |
Wood Steel Stud Drywall or Masonry |
Steel Stiffened Hollow Metal, Wood Flush |
| 20 minutes |
8'0" wide x 9'0" high |
Wood Steel Stud Drywall or Masonry |
Steel Stiffened Hollow Metal, Wood Flush |
Rolled Formed Steel Door Frame (18, 20, 22 gauge) (Knock Down) for installation in 45 minute locations in steel/wood stud drywall or masonry openings.
Limitations
Steel Casing Trim*, labeled positive pressure fire rated composite core wood door or steel stiffened positive pressure doors. *For wood and aluminum trim, proprietary construction of frame is required. Wood trim (minimum density of 28 pcf) is allowed. Minimum Throat Opening: 3-1/2"
| Rating |
Maximum Size |
Wall Construction |
Door Type |
| 45 minutes |
4'0" wide x 8'0" high |
Wood Steel Stud Drywall or Masonry |
Steel Stiffened Hollow Metal Doors, Composite Core Doors |
| 45 minutes |
8'0" wide x 8'0" high |
Wood Steel Stud Drywall or Masonry |
Steel Stiffened Hollow Metal Doors, Composite Core Doors |
Testing Standard
UL-10C (Positive Pressure).
Evaluated to the following...
This category includes frames not based on 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, "UL-10C. Frames rated at less than 3 hours will have a time interval noted on the label/marking.
