Abstract: A metal door including a hinge stile having upper and lower ends, a lock stile having upper and lower ends, a top rail extending between the upper ends of the hinge and lock stiles, a bottom rail extending between the lower ends of the hinge and lock stiles, and an intermediate rail extending between the hinge and lock stiles above the bottom rail. The hinge stile, the lock stile, the top rail, the bottom rail and the intermediate rail having a unique construction which creates a thermal break therein. The door is mounted in a jamb which also has a unique construction which creates a thermal break therein.