Abstract: A highly adaptable mounting panel has a planar surface for supporting various devices including an electrical meter thereon. The planar surface is elevated from a surrounding flange, which may be operatively fastened to a wall or similar building structure. The surrounding flanges are beveled to interlock the panels together and extend the coverage of the planar surface to an area covered by two or any multiple of modules. Guides and selective reinforcements are provided to ensure simple, rapid and secure fastening between adjacent panels. Additional brackets are disclosed which permit the mounting panel to be used in conjunction with brick or stone siding.