Fire-Rated Steel Doors for Commercial & Industrial Applications
Commercial Door and Hardware is an authorized WHI fire-labeled shop (Warnock Hersey / Intertek), enabling us to modify, re-certify and label fire-rated doors and frames. And we are certified by UL to cut, re-certify and label fire-rated glazing materials. Our facility undergoes routine inspections to verify that modifications are done in compliance with the requirements of the Intertek and UL specification listings. All material is tested in accordance with NFPA codes and standards.
Fire-rated up to 3 hours with WHI / ITS mylar label applied
1-3/4? Thick, non-handed design with reversible hinge plates
Interlocking seam enhances structural rigidity and durability
Factory applied rust inhibiting primer (no special color options)
Fire-rated glass options for vision lites
Fire Door Ratings and Classified Openings
?90 Minute Fire-Rated Door
w/ Narrow Vision Lite on KD Drywall Frame ? Finished (Painting by others)
3 Hour Fire-Rated Door
Flush Door on Welded Masonry Frame ? Unfinished (Primed Gray)
Fire door openings are classified by their locations in a building. Location determines the length of exposure protection required, based on the potential fire hazard of that particular area. The opening classifications are shown below. Fire-protection ratings tested and classified by: Warnock Hersey-WHI or Underwriters Laboratories- UL. The local Authority Having Jurisdiction must be the final authority on fire door assembly issues.
Note: Most exterior doors do not require fire-rating unless there is the potential for fire exposure from the outside of the building.?See?Flush Metal Doors?for non-rated doors, which are made from the same construction as a fire-rated metal door.
Fire-Rated doors are required to be self-closing and positive latching. Frame and Hardware must also carry the appropriate fire label.
Description and Use
3 Hour (180 Minutes)
These openings are in wall that separate buildings or divide a single building into designated fire areas.
1-1/2 Hour (90 Minutes)
Openings of this type are used in enclosures of vertical communication or egress through buildings. Examples include stairwells and elevator shafts. They also occur in boiler rooms and in exterior walls that have the potential for severe fire exposure from the outside of the building.
1 Hour (60 Minutes)
These door and frame assemblies divide occupancies in a building.
3/4 Hour (45 Minutes)
For use where there are openings in corridors or room partitions. A door with this rating may also be located in the exterior wall of a building subject to moderate fire exposure from the outside of the building.
1/3 Hour (20 Minutes)
These openings are in corridors where smoke and draft control is required.