Types of Wood:
1. Kaya - also Hyuga Kaya and Hon Kaya (Torreya nucifera):
This is a slow-growing coniferous tree primarily found in southern Japan. This wood is considered to be the best, and is the most expensive option for Go boards. The trees used are often up to 700 years old. The wood contains much oil and has a beautiful smell. The grain is very distinct as it is grown in places where there is great variation between day and night temperature. It has very dense grain due to it growing slowly in rock places.
2. Hiba - (Thujopsis):
It is part of the cypress family of trees and is endemic to Japan where it is called Hiba. This is an ornamental tree and is commonly planted around temples as well as gardens. It has a very nice smell, fine texture, light in color, and depending on the quality of the cut and grain it can closely resemble Kaya. It is widely regarded as a high quality wood for making Go boards.
3. Katsura - (Cercidiphyllum):
These trees are native to Japan (island of Honshu) and China. It is also an ornamental tree due to its bright autumn color, and can often be found in parks. The grain is darker than Hiba and Kaya, and is usually not as distinct. Also a popular and less expensive option than the above.
4. Shin-Kaya - (new kaya, shin meaning new):
This spruce wood has a light texture and very bright and vivid grain, it is a light weight wood and can be prone to cracking if only one piece. However if dried correctly, and joined properly this can be a cheaper alternative.
5. Agathis - (Kauri or Dammar):
This wood is part of the evergreen family. It is dark in texture and grain, and is one of the more cheaper options.
6. Bamboo:
Very durable, cheap, but has a plastic feel. Not usually recommended for Go, but this could appeal to some.
