D2864 Steel Door With Louvers Door Type 3 Lock Type Mortise Material 18-gauge Thermal Insulation U-Factor 0.41 Door Opening Height 84 in Door Opening Width 36 in Thickness 1-3/4 in Agency Compliance ANSI UL For Use With Frames 1PHT1 1PHT5 1PHT9 1PHU4 Includes 24 X 24 in Louvers 7-3/8 in 39-5/16 in 71-1/2 in 39-15/16 in 84 in