Abstract: A mounting structure, for attachment to a building, for mounting articles such as satellite dishes, flags and other articles, comprises a unitary rectangular substantially flat panel having top and bottom flanges, side edges and an inner surface. Bosses are formed in each flanged spaced apart and adjacent side edges. A central embossed portion extends up from the flange at top and bottom. A central protrusion, and two side protrusions, extend inwardly from the inner surface of the panel, in lateral alignment. An inclined portion extends inwardly from the inner surface of the panel at each side and bending into the side ends of the upper flange. Flange portions extend between the central embossed portion and the bosses and between the bosses and the side edges at the top and bottom flanges. In position, the flange portions, central protrusions and the side protrusions contact the siding.