Timber framing is a method of building where the skeletal supports for the structure are visible on the inside and outside. The members of the framing are fitted into place with wooden pegs. The pocket which the tenon is placed into is called the "mortise," and the piece going into the mortise is the tenon. I
These members can range up to 12”. A good example of the type of framing would be in barns. This way of constructing buildings dates back as far as the Romans. Today it has regained popularity in parts of the world.