Standard Fire Rated Access Door - Stainless Steel - 20 In x 20 In

The WB-FR Standard Fire Rated Access Door is designed for both wall and ceiling applications. 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. Warnock Hersey International; Pittsburgh, CA 1 hr rating for combustible floor/ ceiling applications. 3 Hr. rating for non-combustible floor/ceiling assembly. 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”). Intertek Spec. ID #57683.

Features

• Stainless steel #304 and #316 (#4 satin finish)
• Insulation – 2 inches thick mineral wool contained within door cavity.
• Hinge - Fully concealed rod type hinge.
• Allows opening to 170 degrees.
• Latch - Self-latching direct-action latch, opposite hinge.
• ccepts both key and knurled knob, included with each door.
• Automatic Panel Closer - Standard on all doors.
• Inside Panel Release - Standard on all doors.
• Masonry Anchor Straps - Standard on all doors.

Available options (call for pricing).

• Mortise lock preparation.
• Pemko hot smoke seal gasketing.
• Custom sizes available

Ceiling Installation - To comply with current fire regulations, largest size acceptable is 24 inches x 36 inches.