Wood Door Frame (Oak) (Knock-Down) (Applied T Stop) (Single or Double Rabbet) (Applied Casing) (Side Lights with Mullions either side or both sides of door) (Maximum Clear View Area - 1,200 sq.in.) (Side Light Frames may be with either Applied or Rabbeted Casing) for installation in 20 minute locations in steel/wood stud drywall or masonry openings.
| Maximum Size of Openings: | Singles- 3'0" wide x 9'0" high Pairs- 6'0" wide x 9'0" high
 | 
| Individual Side Lights: Clear View Dimensions- | Width- 22-3/4" Height- 52-3/4"
 Area- 1,200 sq.in.
 Glazing- Labeled Firelight or
 Labeled 1/4" Wired Glass
 | 
| Maximum Overall Dimensions: | 91-1/2" wide x 111" high | 
| Minimum Wall Thickness: | 3-3/4" | 
 
Note: Sidelights are not allowed with door pairs.
Evaluated to the following:
Unless otherwise noted, assemblies in this section have been tested to the following standards:
ASTM-E152, Methods of Fire Tests of Door Assemblies;
CAN/ULC-S104, Standard Method for Fire Tests of Door Assemblies;
NFPA-252, Standard Methods of Fire Tests of Door Assemblies;
UBC-7-2-94, Uniform Building Code;
UL-10(b), Fire Tests of Door Assemblies;
and are installed, unless otherwise noted, in accordance with the following:
NFPA-80, Fire Doors & Windows.
Manufacturer's Instructions.
Listed maximum sizes of lights are based on sizes tested and may exceed local code requirements.
All frames are identified by either a label or embossed marking bearing the wording "Listed (Product)" and the WHI Certification Mark. Frames rated for less than 3 hours also bear the time interval. Frame labels that do not include a time interval are rated for 3 hours.