Frame: 16 ga. steel, 2 1/2 deep, with 3" wide perforated flange of 24 ga. galvanized material. Space from expanded flange to the 1/4" safety edge of the door will accommodate 3/4" of plaster
Insulation: 2" thick mineral wool (THERMAFIBER®)
Hinge: Fully concealed, pivot-rod type hinge allows opening to 140º
Latches: Self-latching direct action latch will accept both key and knurled knob
Automatic Panel Closer: Vertical position only. Ceiling position has self-assisted closing
Inside Panel Release: Furnished on all doors
Ceiling Installation: To comply with current fire regulation, largest size acceptable is up to and including 24" x 36"
Finish: Grey baked enamel coat and can be used as a finish or as a prime coat