D3674 Vision Lite Hollow Steel Door Door Type 2 Lock Type Mortise Material 16-Gauge Thermal Insulation U-Factor 0.41 Door Opening Height 80 in Door Opening Width 32 in Window Height 11 in Window Width 11 in Thickness 1-3/4 in Agency Compliance ANSI A250.8-1998 UL For Use With Frames 1PHU5 1PHU9 1PHV4 1PHV8 Includes 1/4 in Clear Wire Glass with Safety Film Fire Rated For 90 Minutes 4-7/8 in 35-1/4 in 65-3/8 in 36-1/4 in 80 in