Door hinge detail of Witt Shields Barn, Cades Cove, TennesseeGreat Smoky Mountains National ParkDetail of portion of lower hinge at C. A block of oak, in which a round depressing (or sock was cut, was fastened to the log with the two oak pegs shown in the picture. The bottom end of the left (or hinge) stile of the door was formed into a pivot white fitted into the socket, forming the lower hinge of the door. NOTE that the door and hinges are constructed entirely of wood, not a single nail or other metal being required.