Constructed mainly of wood and stone, Gyeonghoeru has a form where the wooden structure of the building sits on top of 48 massive stone pillars, with wooden stairs connecting the second floor to the first floor. The outer perimeters of Gyeonghoeru are supported by square pillars while the inner columns are cylindrical; they were placed thus to represent the idea of Yin & Yang. When Gyeonghoeru was originally built in 1412, these stone pillars were decorated with sculptures depicting dragons rising to the sky, but these details were not reproduced when the building was rebuilt in the 19th century. Three stone bridges connect the building to the palace grounds, and corners of the balustrades around the island are decorated with sculptures depicting twelve Zodiac animals.