white lauan

…All of them are large trees that reach a height of 50-60m and a diameter of 1-2m, with trunks of equal thickness from bottom to top. Based on the color of the wood, they are generally divided into three groups: red lauan (heartwood is reddish brown to dark reddish brown), white lauan (heartwood is pale grayish white to pale pink brown), and yellow lauan (heartwood is pale yellowish white to pale greenish yellow). The air-dry specific gravity of the wood is approximately 0.50-0.65, and it is easy to process and has moderate strength, making it easy to use for building construction, practical furniture, and tools, and since large diameter wood can be obtained in large quantities, it is considered the ideal material for plywood. …

*Some of the terminology that mentions "white lauan" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…いずれも樹高50～60m，直径1～2mになる大高木で，下から上まで同じ太さの幹をもつ。木材の色調からふつうレッドラワン類red lauan(心材は赤褐色～濃赤褐色)，ホワイトラワン類white lauan(心材は淡灰白色～淡桃褐色)，イエローラワン類yellow lauan(心材は淡黄白色～淡緑黄色)の3グループに分けられる。材の気乾比重はおよそ0.50～0.65で，加工性のよさ，適度の強度などの点から建築造作用，実用家具類，器具類などに使いやすく，大径材がまとまって得られるので合板の最適材とされる。…

※「white lauan」について言及している用語解説の一部を掲載しています。

出典｜株式会社平凡社世界大百科事典 第２版について | 情報