D2865 Steel Door with Louvers Door Type 3 Lock Type Cylindrical Material 18 -gauge steel Thermal Insulation U-Factor 0.41 Door Opening Height 80 in Door Opening Width 36 in Window Height 60 in Window Width 24 in Thickness 1-3/4 in Includes 24 x 60 in Louvers 7-3/8 in 37-5/16 in 67-1/4 in 38-7/16 in