Wood Core Type (Particle Board or Wood Stave) L20SP*, Swinging Flush Design Fire Door for installation singly or in pairs, including double egress, door, and transom, and Dutch door, in 20 minute locations (with hose stream).
Limitations
Unit, Mortise, Card, Combination, Interconnected or Cylindrical Latches with up to a 5" backset/Deadbolts/Lights - maximum 1,296 in
2/Surface Mounted Vertical Rod Fire Exit Hardware/Mortised or Surface Mounted Rim Type Fire Exit Hardware/Automatic Door Bottoms/Metal Edges or proprietary edges required on pairs and double egress/proprietary edges on pairs or double egress do not require Metal Edges, proprietary edges may be rabbeted on pairs/Pocket Pivots/4" x 4" X 0.097" Hinges/Mortised Automatic or Manual Top and Bottom Bolts/Overhead Concealed Closer Arms permitted/Concealed Closers/Viewers/Metal Edge Guards/Surface Plates/Electrical Raceways/Plant-Ons/ Face Routering/Louvers**.
**Not allowed in smoke barrier doors or doors meant for smoke and draft control.
Maximum Size of Openings
| Configuration/Maximum Size |
| Single Swing |
4'-0" x 9'-0" or 3'-0" x 10'-0" |
| Standard Pair |
8'-0" x 9'-0" (4'-0" x 9'-0" each leaf) |
| Double Egress |
8'-0" x 8'-0" (4'-0" x 8'-0" each leaf) |
| Door and Transom |
3’-0” x 10’-0” maximum combination
3’-0” x 3’-4” maximum transom |
| Dutch Door |
4’-0” x 8’-0”3 |
| Minimum Thickness |
1-3/4" ± 1/16” |
Limitations
Unit, Mortise, Card, Combination, Interconnected or Cylindrical Latches with up to a 5" backset/Deadbolts/Lights - maximum size 1,296 in
2/Automatic Door Bottoms/ Pocket Pivot/4" x 4" x 0.097" Hinges/Viewers/Metal Edge Guards/Surface Plates/Electrical Raceways/Plant-Ons/Top Leaf must have formed steel Astragal.
*Manufacturer's Designation.
Evaluated to the following...
- Unless otherwise noted, assemblies in this section have been evaluated for conformance to the following standards:
UL 10C, Positive Pressure Fire Test of Door Assemblies
- CAN/ULC S104, Standard Method for Fire Tests of Door Assemblies
- NFPA-252, Standard Methods for Fire Tests of Door Assemblies
- UL 10B, Fire Tests of Door Assemblies
and are installed in accordance with the following:
- NFPA 80, Fire Doors and Windows
This category includes doors evaluated with an edge-sealing system (Category G) field-applied to the labeled frame or door. The application of the edge-sealing system does not require any machining of the frame or door. Please refer to "Category G - Edge-Sealing System" for individual manufacturer's listings.
These assemblies are eligible for use in any "Category C - Standard" frame. These doors may also be installed in frames listed in "Category C - Proprietary" in the accordance with the frame manufacturer's individual listing.
All doors listed in Category B are eligible to bear the "S" (for Smoke & Draft Control assemblies) if a listed "Category H - Smoke & Draft Control Gasket" has been applied to the assembly. Please refer to Category H for individual gasket manufacturer's listings.
All doors in this category are identified by a label or marking bearing the wording, "Listed Fire Door", a time interval, a temperature rise rating, a serial number and the Warnock Hersey Certification Mark and UL 10C.
Manufacturer's Instructions All assemblies are identified by a label or marking bearing the wording, "Listed (Product)", a time interval, temperature rise (if applicable), a serial number and the WHI Certification Mark.
