Secure your home with the unmatched strength and reliable performance of this Majestic Steel Front Door unit from MMI Door. Crafted from galvanized 24-gauge high-quality steel to resist rust and corrosion, this durable entryway provides superior security for your peace of mind. Inside, a one-piece high-density polystyrene core delivers excellent insulation that meets or exceeds current energy code standards to keep your interior comfortable year-round. The complete package includes a 4-9/16 in. W primed finger-jointed frame to simplify your installation process. Ensure a perfect fit for your space with a nominal door size of 30 in. x 80 in., a unit dimension of 31.5 in. x 81.75 in. and a suggested rough opening of 32 in. x 82.25 in. You can upgrade your entryway with confidence knowing this door features a comprehensive MSystem two-year warranty on both the door component and the base pre-hung system as well as a 10-year warranty on the glass lite.