MMI Door Majestic Steel Front Door unit comes with a 10 year Warranty on the door component, a Limited Lifetime Warranty on the prehung MSystem, a 10 year glass lite warranty and a 10 year warranty on the painted finish of the pre-hung door component. All of our Majestic Steel doors are galvanized to resist rust and corrosion, are comprised of 24-Gauge, high quality steel with 22-Gauge steel stiles and rails for additional strength and security and come with a one-piece, high density polystyrene core delivering excellent insulation allowing it to meet or exceed current energy code standards. Common door size is 36 in. x 80 in. Unit dimension is 37.5 in. x 81.75 in. The suggested rough opening is 38 in. x 82.25 in. This unit comes with a 4-9/16 in. wide primed FrameSaver frame. Color: Hunter Green.