The FD3D Series Access Door is the largest net-size opening in a three-hour fire-rated double-leaf panel for wall or ceiling applications with a temperature rise. These double-leaf access panels include a removable center mullion for easy access to large components in walls or ceilings.
Ceiling installation sizes are up to 36″ x 36″, and they may be installed in walls up to 48″ x 60″. This is ideal when equipment installation or removal is a consideration.
FD3D Series Double Leaf Access Door Specifications
- Materials: Satin finish galvannealed steel or 304 stainless steel.
- Frame: 16 gauge steel up to and including 30″ x 48″ or 14 gauge steel for larger sizes.
- Flange: Width -7/8″ up to and including 36″ x 36″. 1-1/4″ for larger sizes
- Door Panel: 18-gauge galvannealed steel with 22-gauge liner.
- Insulation: The door panel contains 2-1/2″ high-temperature insulation material.
- Finishes: Rust-inhibitive off-white prime coat or #4 stainless steel finish on an exterior surface
- Hinges: The concealed continuous rod hinge secures the door panel. The hinge is placed on the long side of the door (” H” dimension) unless otherwise requested. Note that the continuous piano hinge is standard for Sizes greater than 48″ in a wall position.
- 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 that allows the doors to be opened from the inside for sizes 16″ x 16″ and larger. An interior latch for smaller sizes is an option.
Rough Opening (W x H)# of Latches
FD3D Series Double Leaf Access DoorSTANDARD SIZES |
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36″ x 48″ |
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Single Leaf Construction For Walls OnlyThese panels have 1-1/4″ wide trim. |
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24″ x 60″ |
4 |
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36″ x 60″ |
4 |
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48″ x 60″ |
4 |
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Other Sizes Available – Please Order By Rough Opening Size and Specify Wall or Ceiling Application
Contact us for more information on custom sizes and additional locking details.