Abstract: A cleating apparatus for mounting a vanity top from a pair of oppositely disposed vertical return walls formed in the recess of a room. The apparatus includes a pair of oppositely disposed rails for mounting in a horizontal orientation on such return walls, in horizontal alignment with one another. The respective rails are formed at their front ends with respect to upwardly opening notches having downwardly and rearwardly inclined wedge surfaces. A skirt is provided for covering the front ends of such rails and have respective brackets on the opposite ends thereof and projecting rearwardly therefrom in coextensive relationship with such rails. Mounted to the opposed sides of such brackets are triangular wedged blocks having respective downwardly and rearwardly inclined surfaces for complimental engagement with the notch wedge surfaces.