Krathom is built on an elevated platform made of bamboo. The wall is made either of krachaeng on or bamboo sheet. With palm thatch roof, it has a veranda and an open deck. This structure is stronger and more comfortable than Rong Na, implying a better economic position of the owners.This kind of house was also a home of high-ranking officials, including members of the royal family, who were stripped of their titles. Historical record mentioned an incident, which happened in the reign of King Prasartthong of Ayutthaya