Abstract: An improved, one piece, counterbalanced, canopy-type door. The door has a counterweight tube fixed to and extending along the upper edge thereof, which tube contains a counterweight mass. The counterweight tube projects outwardly beyond the front surface of the door to provide for a positive closing of the door when the door swingably approaches its closed position. The door inlcudes a frame having a pair of Z-shaped rails defining the side edges of the door, and one or more intermediate channel members disposed between and substantially parallel to the side rails. The side rails and channel members are fixed at the upper ends thereof to the counterweight tube, and are of decreasing cross-section as they extend to the lower end of the door. This permits the door to be of lighter weight yet possess increased strength so that the door is capable of withstanding substantially greater panel loads thereon, such as caused by high winds.