The WB-FR Standard Ultra Access Door features a paddle latch with WB 151 key cylinder lock. It is designed for both wall and ceiling application. For walls, this door has an Underwriters Laboratories (UL and ULC), 1-1/2 hour “B” label, with a maximum temperature rise of 250 degrees Celsius after 30 minutes for vertical wall installations. File # R10364. Warnock Hersey International; Pittsburgh, CA 1 hr rating for combustible floor/ceiling applications. Report. # WHI-495-PSH-0191. Warnock Hersey International, Pittsburgh, CA 3 Hr. rating for non-combustible floor/ceiling assembly, Report # WHI-495-PSH-0192. This door may be used in a 2-hour fire rated wall assembly. For fire rated ceilings, this door has been approved by Warnock Hersey International for 3 hours (*max. size to 24” X 36”).
18 ga. cold rolled steel
16 ga. cold rolled steel
2” thick mineral wool contained within door cavity
Fully concealed rod type hinge.
Allows opening to 170°
Self-latching direct-action latch, opposite hinge. Ultra Lock with key included with each door.
Standard on all doors
Standard on all doors
White powder coat paintable finish.
Standard on all doors
To comply with current fire regulations, largest size acceptable is 24” x 36”
Elevation
Section Detail
Size = A x B (w x h)
Rough wall opening = door size + 1/4”
Note: For fire-rated ceiling access doors, on size 16” x 16” and larger, extra spring supplied with door must be attached from back of door pan to framing or floor above. In horizontal (ceiling) applications door has self-assisted closing.