Abstract: One aspect of the present invention is directed to a door, and more specifically, to a door that includes a web and a rigid foamed core. In one embodiment, a door is disclosed which comprises a door shell having a generally planar construction with marginal edges and first and second door skins helping to define an interior door cavity, a web disposed within the interior door cavity, and a rigid foamed cementitious core disposed within the interior door cavity and cooperating with the web.

Abstract: A high performance door comprising a door shell having a generally planar construction with marginal edges and at least one door skin helping to define an interior door cavity and a door member disposed within the interior door cavity is disclosed. The door member is preferably constructed of a gas-entrained cementitious material and has a compressive strength of at least about 30 lbf/in2 when measured using ASTM C-39. A method for forming a door member for use in construction with the door generally comprising: providing a door shell, placing the door shell in a fixture, filling the interior door cavity with a gas-entrained cementitious material, green-strength curing the gas-entrained cementitious material, and removing the door shell from the fixture is disclosed. The cured gas-entrained cementitious material provides a gas-entrained cementitious core for use in conjunction with a door.

Abstract: A door sill assembly is provided with an adjustable threshold. A sill assembly is made up of an elongated metal frame for installation on the floor of the doorway. The metal frame is provided with a tongue and sloping sill portion, a vertically extending rib and a shelf located below and integrally oriented relative to the rib. The threshold rail is supported on the frame member shelf portion upon two adjustable feet for varying the relative height level of the rail. A plastic threshold cap is sized to fit over the threshold rail and includes a pair of downwardly spaced ribs sized to securely fit over the vertical rib of the frame member to locate the threshold cap and rail relative to the frame member while providing limited vertical adjustment. Preferably, the interior trim molding is provided which is fixed relative to the frame member and oriented inboard of the threshold cap.