Audiophile Grade Turntable Wall MountExtremely rigid solid steel construction4 Adjustable spikes for leveling the shelf.Black plywood shelf with metal discs to protect it from spikes6 screw holes to attach to wall studs (16 inch on center)Shelf area is 14 inches x 18 1/4 inches.Note on the back of the unit, which would be against the wall, there is a small amount of white paint that came off the wall when it was removed.  This would in no way affect the performance of the shelf. see picture