A rigid braced art surface that will support sculptural objects, metal fasteners, foams, paints, plasters, and the like. The braced art surface consists of a rigid working surface supported by back bracing that runs horizontally, vertically, and diagonally, with corner supports. The resulting system of bracing, along with the permanent fastening of the surface to the bracing, results in a surface that is dimensionally stable, twist and warp resistant. As an braced art surface of rigid and strong construction, one can apply paint, scrape or cut, attach objects, or apply plasters and foams to it with no concern for compromising the structural integrity of the surface.