The largest three-hour ceiling access door available on the market. The FD3D Series double leaf door reduces the swing radius and clears objects which may interfere with the opeing of the door. Offering unprecedented flexibility in designing. 

• Materials: Satin finish galvannealed steel or 304 stainless steel.
• Frame: 16 ga steel up to and including 30" x 48" or 14 ga steel for larger sizes.
• Flange: Width -7/8" up to and including 36" x 36". 1-1/4" for larger sizes
• Door Panel: 18 ga galvanealed steel with 22 ga liner.
• Insulation: The door panel contains 2-1/2" of high temperature insulation material.
• Finishes: Rust inhibitive off-white prime coat or #4 stainless steel finish on exterior surface
• Hinges: the concealed continuous rod hinge is designed to secure the door panel.  The hinge is placed on the long side of the door (" H") dimension) unless otherwise requested.  Note Sizes greater than 48" in a wall position, the continuous piano hinge is standard.
• Panel Closer: The automatic panel closer will close and latch the door from an open position of 90° as required by NFPA  80.
• Latch: The standard factory installed latch is a flush mount 1/4" allen key. All fire-rated locks are self-latching and include an interior latch release mechanism allow the doors to be opened from the inside for sizes 16" x 16" and larger.  Interior latch for smaller sizes is available as an option.