This mantle and built in has a two part top with adjustable shelves. The bottom has a cabinet with one adjustable shelf and a copper firewood insert. The materials are made from 3/4" birch ply and rough sawn wood that I milled to insure everything is straight and true and painted white to match existing trim work. The tops are walnut with three part poly/oil mix. This built in has a brushed finish to seamlessly match the rest of the existing woodwork which I highly recommend but I can also spray finish as well.