Manufacture and sale of large diameter lumber products
What is a solid JAS lumber product?
Until now, solid JAS lumber with a thickness of up to 150mm was generally available, but stable production of lumber with a large cross-section exceeding 150mm has been difficult.
> For medium to large scale wooden construction such as public buildings, JAS lumber with strength classification is required.
We are able to procure JAS lumber in thicknesses of 90-300mm, widths of 90-390mm, and lengths of up to 9,500mm.
Kiln for drying large diameter lumber
The surface temperature should be medium 70 to 90°C, and the center temperature should be over 100°C.
Internal temperature distribution of wood
Large Diameter Lumber Size
It is possible to manufacture up to 300 mm x 390 mm x 9,500 mm.
Examples of Materials
Sakura Ekimae Koryu Shisetsu
Large diameter lumber 300mm x 300mm was used for the columns
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