Intertek Directory of Building Products

Masonite 20-Minute / NP Particleboard Core Company: Masonite Corporation

Wood Core Type (Particleboard) (Flush or Profiled) Swinging Door for installation in 20-minute without hose stream locations.  These doors are eligible for use in any listed fire rated "Category C - Standard" frame and may also be installed in any listed fire rated "Category C - Proprietary" frame in accordance with the frame manufacturer's individual listing.    

Limitations
Cylindrical Latches with maximum 2-3/4" backset/Surface Mounted Vertical Rod Fire Exit Devices/Rim Type Fire Exit Devices/Deadbolts/Surface Mounted Closers/Surface Mounted Protection Plates/Viewers/Glass Lights - Maximum 1296 in2/Door Bottoms - Surface Mounted or Snap-in Design.
 
Configuration Maximum Size
Single Swing 3’-0” wide by 8’-0” tall
3’-6” wide by 7’-0” tall
Standard Pairs 7’-0” wide by 7’-0” tall
Double Egress Not Allowed

Evaluated to the following
Unless otherwise noted, the product listed above in this section has been evaluated for conformance to the following standards:
  • UL 10B – Fire Test of Door Assemblies
  • NFPA 252 – Fire Test of Door Assemblies
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Attributes
CriteriaUL 10(b) (2008) (R2020)
CriteriaNFPA 252 (2022)
CSI Code08 10 00 Doors and Frames
CSI Code08 14 00 Wood Doors
Fire Resistance20 Min w/out Hose Stream NP
Fire Resistance20 Min Neutral Pressure
Listing SectionDOORS
Spec ID21439
SwingSingle Swing
SwingStandard Pairs
Design Documents
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