D3655 Half Glass Steel Door Door Type 2 Lock Type Cylindrical Material 16-Gauge Thermal Insulation U-Factor 0.41 Door Opening Height 84 in Door Opening Width 30 in Thickness 1-3/4 in Agency Compliance UL 3/4 Hour Fire Rating Includes Glass Not Included 4-7/8 in 37-1/8 in 69-3/8 in 42-3/4 in 40-1/4 in