Door Components 20 Min-3 Hour Pressed Steel Fire Door Frame Company: DCI Hollow Metal
Fire Rated steel door frame 20 minute, 45 minute, 60 minute, 90 minute, and 3 hour ratings.
MAXIMUM SIZES
Singles: 4'0" x 8'0"
Standard Pairs: 8'0" x 8'0"
Double Egress: 8'0" x 8'0"