What kind of wood is commonly used in the external wall of wood structure?

Generally, the wood used in the external walls of wooden buildings is different in different areas of China, and it basically inherits the characteristics of "taking materials from local areas". Conifers and broad-leaved trees are often used in the selection of wood structure materials. Common conifer species: various conifers and cypresses. Commonly used broad-leaved tree species: Fraxinus mandshurica, oak, birch, colored wood, Sophora japonica and other hard tree species. Soft tree species are often used in decoration engineering. These tree species have their own advantages and are suitable for different parts. This is due to the characteristics of wood, that is, wood density, moisture content, distortion, cracks and so on.

? Most wooden buildings in Beijing use nanmu; Commonly used in Hebei are Pinus tabulaeformis, Larix principis-rupprechtii, Korean pine, white pine (spruce), cypress, eucalyptus and poplar. In Hohhot, Inner Mongolia, almost all Chinese pine wood is used; Nanmu, Pinus tabulaeformis, Elm, Zanthoxylum bungeanum and Populus tomentosa used in Shandong; Larix principis-rupprechtii (red stem) and Pinus tabulaeformis are widely used in Shanxi. Pinus armandii, elm and Sophora japonica are mainly used in Xi, Shaanxi. Nanmu, cypress and Chinese fir are commonly used in Sichuan. There are many tree species used in Hubei, including nanmu, cypress, Chinese fir, masson pine, pine, willow, elm and pine. Nanmu, cypress, Chinese fir, pine, camphor wood, etc. It is widely used in Hunan. Chinese fir and cypress are widely used in Fujian, and Schima superba and lemon juice are also used in residential buildings. Nanmu, cypress, chestnut and Chinese fir are mainly used in Jiangsu and Zhejiang provinces, and camphor wood, sample wood, hickory and Schima superba are also used. Korean pine, fir, oak and Fraxinus mandshurica are used in Northeast China.