The Japan Wood Products Export Promotion Council has made up four models of wood houses based on the Chinese wood building standard. They are corresponding to the Chinese needs with exposed use of wood of Japanese species like cedar, cypress and larch to differentiate from 2x4construction. The Association hopes to promote sales of domestic wood products and wood house to China. Source: ITTO
The Association has been asking to add Japanese species of cedar, cypress and larch to the Chinese wood structure standard. There are four model plans. M1 type is two stories with floor space of 170-300 square metres and M2 type is two to three stories with floor space of 170– 300 square metres. M1and M2 are both medium grade specifications. J1 type is two stories with floor space of 200-300 square metres and J2 type is two stories with floor space of more than 300 square metres. 1 and J2 are both high grade specification.
They are different from Japanese houses with much higher height of ceiling like 3-4 metres on first floor and 2.4-2.5 metres on the second floor.
The Chinese wood construction standard allows to build up to three stories and the committee is now discussing for higher wood multilayer building and they are interested in wood multilayer buildings in North America and Europe including use of CLT. China has CLT manufacturing plants.