Traditional Korean houses can be structured into an inner wing (안채, anchae) and an outer wing (사랑채, sarangchae). The individual layout largely depends on the region and the wealth of the family. Whereas aristocrats used the outer wing for receptions, poorer people kept cattle in the sarangchae. The wealthier a family, the larger the house. However, it was forbidden to any family except for the king to have a residence of more than 99 kan. A kan is the distance between two pillars used in traditional houses.