can generally be classified into three sizes: large, medium, and small.

Large bamboo, with an average diameter ranging from 12-20 centimeters,

includes species like Pai Tong , Pai Bomg Wan , Pai Hok , Pai Pa. Due to their size and strength, they are suitable for main structures such as posts, beams, rafters, floor joists, and stairs. They can also be split or shaved to use as flooring or walls, although the varying size of the nodes and tips means some parts may need to be trimmed for consistent use.

Medium-sized bamboo, such as Pai Sang Mon and Pai See Suk, is versatile for a wide range of applications. They can be used for main structures, roofing, and support structures. Their flexibility allows them to be used in decorative elements or processed into laminate sheets.

Small bamboo, including species like Pai Lummalok , Pai Liang , Pai Ruak Dam , Pai Rai , typically have thinner diameters but relatively thick walls. These are suitable for sub-structures like flooring, roofing, balconies, and decorative elements. Their dense and flexible nature also allows them to be molded into various shapes.