The BA-PFI-8-8 is an insulated, fire rated access door. It manufactured with heavy duty steel and insulated with a 2-inch-thick mineral wool. It has a one-inch flange, so you can install this access door on any flush surface. It features an inside panel release with an automatic panel closer. Note 1: Maximum door size 24" x 36" can also be calculated by multiplying the surface area of the door (24"x36"). The maximum surface area is 864 sq inches. The maximum height or width is 36". All door sizes equal or smaller than 864 sq inches fall within the standards. Ex. Door size of 28" x 28" = 784 sq inches. PRODUCT FEATURES Material: 16 gauge cold rolled steel frame and 20 gauge galvanneal steel door Insulation: 2" mineral wool Hinge: Continuous piano hinge Lock / latch: Self latching tool-key operated slam latch and/or ring operated slam latch, both included Inside panel release: Included on all slam latch fire doors Automatic panel closer: Standard on all doors Finish: DuPont high quality white powder coat Packaging : Individually wrapped, 1 per box Read more FIRE RATING Fire rating: For installation in Vertical Wall assemblies: RATING ACHIEVED: 3 hours, neutral/negative pressure. MAXIMUM SIZE: 48” wide x 48” high (1219 mm x 1219 mm). maximum area of 2304 in2. tolerance on height and width limitation is ± 3” (76 mm) as long as the area does not exceed 2304 in2. TEMPERATURE RISE: 250°f (121°C) after 30 min. 450°f (232°C) after 60 min. Fire rating: For installation in Horizontal Ceiling assemblies: RATING ACHIEVED: 3 hours in non-combustible construction. 1 hour in combustible construction. MAXIMUM SIZE:” x 36” (hinges & latch on 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 Read more 1" Flange for any type of surface The BA-PFI comes with a 1" flange for an easy flush installation on any type of surface. It is rated 3 hours for walls, and 1 hour for ceiling installations. Self Closing and Self Locking As per UL and NFPA standards, once the installation is complete and the provided springs are hooked to the back of the panel, the door will be self-closing and self-latching. 20 gauge galvanneal steel door The BA-PFI is insulated with 2" thick mineral wool and can be used on fire rated walls and ceilings. Made with a 20 gauge galvanneal steel door. Read more