Intertek Directory of Building Products

Mesker Fire Rated Frame Assemblies Company: Mesker MBM, LP (AL)

Pressed or Roll Formed Steel Door Frame (14, 16 gauge) (Welded Up) for installation in 3 hour masonry openings.
 
Maximum Size of Openings: Singles - 4'0" wide x 10'0" high
Pairs - 8'0" wide x 10'0" high
Double Egress Pairs - 8'0" wide x 8'0" high
Minimum Throat Opening: Singles and Pairs - 4-1/2" to 13-1/2"
Double Egress Pairs - 4-3/4" to 13-1/2"
 
 
Pressed or Roll Formed Steel Door Frame (14, 16 gauge) (Welded Up or Knock-Down) for installation in 1-1/2 hour locations in steel stud/wood stud drywall or masonry openings.
 
Minimum Size Openings: Singles (Knock Down) - 4'0" wide x 8'0" high
Singles (Welded Up) - 4'0" wide x 10'0" high
Pairs (Welded Up) - 8'0" wide x 10'0" high
Double Egress Pairs (Welded Up) - 8'0" wide x 8'0" high
Minimum Throat Opening: Singles (Knock-Down) - 4-5/8" to 9"
Singles/Pairs (Welded Up) - 4" to 13"
Double Egress Pairs (Welded Up) - 4-3/4" to 13-1/2"
 
Compression anchor frames
Pressed or Roll Formed Steel Door Frame (14, 16 gauge) (Welded Up or Knock-Down) for installation in 20-90 minute locations in steel stud/wood stud drywall
Minimum Size Openings: Singles (Knock Down) - 4'0" wide x 8'0" high
Singles (Welded Up) - 4'0" wide x 8'0" high
Minimum Throat Opening: Singles (Knock-Down) - 3-5/8" to 9"
 

 
Pressed or Roll Formed Steel Door Frame (14, 16 gauge) (Welded Up or Knock-Down) for installation in 20 and 45 minute locations in steel stud/wood stud drywall or masonry openings.
 
Maximum Size of Openings: Singles (Knock-Down) - 4'0" wide x 8'0" high
Singles (Welded Up) - 4'0" wide x 10'0" high
Pairs (Welded Up) - 8'0" wide x 10'0" high
Double Egress Pairs (Welded Up): 8'0" wide x 8'0" high
Minimum Throat Opening: Singles (Knock-Down) - 4-5/8" to 9"
Singles/Pairs (Welded Up) - 4-1/2" to 13-1/2"
Double Egress Pairs (Welded Up) - 4-3/4" to 13-1/2"
 
 
Pressed or Roll Formed Steel Door Transom Panel Frame (14, 16 gauge) (Welded Up) for installation in 1-1/2 hour locations in steel stud/wood stud drywall or masonry openings.
 
Maximum Dimensions: Door Opening - 8'0" wide x 10'0" high
Transom Panel - 4'0" wide x 2'10" high or 8'0" wide x 2'8" high
Door Opening - 4'0" wide x 10'0" high
Transom Panel - 4'0" wide x 4'2" high
Minimum Throat Opening: 4-1/2" to 10-1/2"
 
 
Pressed or Roll Formed Steel Door Frame with Transom Panels or Side Panels (14, 16 gauge) (Welded Up) for installation in 1-1/2 hour locations in steel stud/wood stud drywall or masonry openings.
 
Maximum Dimensions: Overall - 12'0" wide x 11'4" high
Door Opening - 8'0" wide x 8'0" high
Transom Panels - 3'0" wide x 4'0" high
Side Panels - 2'9" wide x 4'6" high
Minimum Throat Opening: 4-1/2" to 10-1/2"
 
 
Pressed or Roll Formed Steel Door Frame with Transom or Side Lights or Panels (14, 16 gauge) (Welded Up) for installation in 20 or 45 minute locations in steel stud/wood stud drywall openings.
 
Maximum Dimensions: Overall - 12'0" wide x 11'4" high
Door Opening - 8'0" wide x 8'0" high
Each Light - 1,296 sq.in.
Transom Lights - 3'0" wide x 4'0" high
Side Lights - 2'9" wide x 4'6" high
Transom Panels - 3'0" wide x 4'0" high
Side Panels - 2'9" wide x 4'6" high
Throat Opening: 4-1/2" to 10-1/2"
 
 
Pressed or Roll Formed Steel Door Frame with Transom Light (14, 16 gauge) (Welded Up) for installation in 20 or 45 minute locations in steel stud/wood stud drywall or masonry openings.
 
Maximum Dimensions: Overall- 4'0" wide x 12'0" high
Door Opening- 4'0" wide x 12'0" high
Each Light- 1296 sq.in.
Transom Lights- 4'0" wide x 2'3" high
Throat Opening: 4-1/2" to 10-1/2"
 
 
Pressed or Roll Formed Steel Door Frame with Glazed Transom and or Side Light (14, 16 gauge) (Welded Up) for installation in 20 minute without hose stream locations in steel stud/wood stud drywall or masonry openings.
 
Maximum Dimensions: Overall - 13'2" wide x 11'7" high
Door Opening - 8'0" wide x 12'0" high
Each Light - 5268 sq.in.
Each Light -9'1-3/4" wide x 9'1-3/4" high
Throat Opening: 4-1/2" to 10-1/2"
 
Evaluated to the following:

Unless otherwise noted, assemblies in this section have been tested to the following standards:
UL-10(c), Standard Method for 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;
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.
Listing Report Return to Search
Attributes
CriteriaUL 10(b) 2008 (R2009)
CriteriaCAN / ULC S104 (2010)
CriteriaNFPA 252 (2012)
CriteriaUL 10(c) (2009) (R2015)
CriteriaCAN / ULC S104 (2015) (R2020)
CriteriaUL 10(b) (2008) (R2015)
CriteriaNFPA 252 (2017)
CSI Code08 11 00 Metal Doors and Frames
Fire Resistance20 Min NP Fire Doorframe
Fire Resistance3 Hour PP Category C Standard Frame
Fire Resistance45 Min NP Fire Doorframe
Fire Resistance3 Hour NP Fire Doorframe
Fire Resistance90 Min PP Category C Standard Frame
Listing SectionDOOR FRAMES
Spec ID32767
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