The best wood and the most expensive was a wood that came from India called Kouki. It was known for its hardness and for being very heavy, and would last a long time without bending. The neck of the Sangen is made up of a combination of 3 different pieces of woods for two reasons, one is easy to carry and the other is to keep it from warping. That is why they look for hard woods.
     The heads were made from cat or dog skins. The cat skin was better material because of the sensitive tones it made. Also it was easy to tear which made the cat skin very expensive, therefore professionals would usually use the cat skin, and the dog skin was used for practice mostly.
     Strings were made from silk or nylon or tetoron. The stick or pick use to play the Shamisen was made from Ivory or Tortoise shell or wood or plastic.

To mark the material tree to be used for Shamisen, and cut the neck part into 3 sections (upper, middle and lower necks).

To make slots, pins and groove joints for the sections.

To gently plane the neck part wood smooth.

To glue the neck part to the brace with Nikawa or glue paste.

To carve precisely the head called Tenjin by chisel, knife and adze.

To polish the head and the neck with a whetstone.

To glue the neck to the head with Nikawa and then polish with camellia oil until they shine.

To adjust the angle of the lower neck and the frame to be fixed.

To nail in metal fittings to the head for the strings.To nail in metal fittings to the head for the strings.

To put a string spools on the instrument from neck to bridge.

To stretch cat skin firmly over the body before it is torn.

To tune instrument.

To complete one in about one month.