Although I usually buy solid wood, some pieces of this BC are particle board or plywood.  Still very good quality and looks beautiful.  The pieces did not come labeled, but I could figure them out by the pictures in the booklet.  This is probably the 10th piece from Wayfair I have assembled and they all had the same assembly system which make them very stable.  So I guess I have become a pro at Wayfair assembly!  It is a very heavy quality piece.  Came packaged very securely using expandable foam and styrofoam padding.