Door Frame, Door Type 1, Frame Type Drywall After-Set, Material 16-gauge, Hand RH, Thermal Insulation U-Factor 0.41, Door Opening Height 84 In., Door Opening Width 48 In., Throat Opening Size 4-7/8 In., Overall Depth 5-7/8 In., Agency Compliance UL, 1 1/2 Hours Fire Rating, Includes Adjustable Compression Anchors, 6-5/8 In., 39-5/8 In., 72-5/8 In., 40-15/16 In.