PFU - Fire rated insulated upward opening access door for ceiling


The PFU access door is designed to be installed on fire rated ceilings only. It can easily replace spring loaded models like the PFI. Its door which does not exceed 89 degrees of upward opening, falls back by law of gravity into its locked position as required by fire certification strandards. Holding the door open while climbing through it becomes much easier with no springs to deal with. The largest fire rated PFU available is: (24’’ x 36’’ or 864 sq inches).

PFU fire rated access door specifications

Intertek certification mark


Fire rated by Intertek - Warnock Hersey


Fire rating:

Fire rating for horizontal ceiling assemblies only:

Certified to standards: ASTM E119 (2012), CAN/ULC S101 (2007).

Rating achieved: 3 hours in non-combustible construction. 1 hour in combustible construction.

Maximum size: 24'' x 36''. (Hinges & latch on the 36'' long sides) (610 mm x 914 mm). Tolerances on dimension limitations are +-3'' (76 mm) as long as the area does not exceed 864 in2.

Temperature rise: Not applicable

Material: 16 gauge clod rolled steel frame and 20 gauge galvanneal steel door
Insulation: Mineral wool
Hinge: Continuous piano hinge allows opening to 89°
Lock / latch: Self latching ring operated slam latch inside and a hex head slam latch outside
Finish: High quality white powder coat primer
Packaging: Individually wrapped, 1 per box


Material: Stainless steel #4 (brushed finish)
Masonery anchor: Available on all sizes


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usgbc cbdca LEED

The PFU access door can contribute directly to a project's ability to achieve LEED certification. 

Table of standard sizes (other sizes available upon request)

Door size (W x H)Rough wall openingShipping WeightNumber of locks
22 x 30 22 1/4 x 30 1/4 44 20 1
22 x 36 22 1/4 x 36 1/4 50.5 23 2
24 x 24 24 1/4 x 24 1/4 37.5 17 1

Clear opening with door opened = W - 3 1/2"