This thesis mainly deals with the meaning of single eaves buildings which have Chunyeo with Sarae. As a rule, building with single eaves does not construct Sarae. But we can find some special buildings using Chunyeo with Sarae in the corners of the eaves. At this time, many people say that lower part of the member so called Alchunyeo, and upper part of the member so called Chunyeo. And they also say that the using of Alchunyeo was caused by the shortage of timber which can make Chunyeo properly. As a result, single eaves buildings using Chunyeo with Sarae in the corners of the eaves were not caused by the shortage of timber. That kinds of buildings were made by the hierarchy of building. Single eaves buildings with Sarae have lower rank than double eaves buildings, and also have higher rank than those without Sarae. And we have to say that lower part of the member is Chunyeo, and upper part of the member is Sarae.

This thesis mainly deals with how ‘count of Ryang’ was used in the Daehan Empire. Count of Ryang means how many purlins were used in the building with longitudinal section. As a result, the notion of Ryang in the Daehan Empire does not differ from now one. But the usages of that are different from the Joseon Dynasty, and from the present. In the Daehan Empire, count of Ryang mainly was appeared with another word, count of Kan. In the Joseon Dynasty, they used the count of Ryang combined with Kan. Count of Kan had the meaning of purlin-directional length. By doing that, count of Ryang indicates the size of flank, count of Kan indicates the length of front. But in the Daehan Empire, count of Kan, especially the beam-directional length was considered at first, and then count of Ryang. Separately they used another count of Kan meaning the area of building. By using the combined words, count of Kan and Ryang in the beam direction, they got focused on the frame of wooden structure than before.

This thesis mainly deals with how ‘count of Ryang’ was used in Joseon dynasty. Count of Ryang means how many purlins were used in the building with longitudinal section. As a result, the notion of Ryang in Joseon dynasty does not differ from now one. But the usages of that are slightly different to the present day. In Joseon dynasty, count of Ryang mainly was appeared with another word, count of Kan. Count of Kan has two meanings. One is the length, and the other is the area of building. When they used the count of Ryang combined with Kan, count of Kan had the meaning of length. By doing that, count of Ryang indicates the size of flank, count of Kan indicates the length of front. In the 19th century, count of Ryang looks similar to the past, but count of Kan shows another aspect. It did not indicate the length but the area of building. Through this study, although the usages of Ryang were different to the present, the concepts of Ryang were similar in Joseon dynasty.

This thesis mainly deals with what is the Gurodae, recorded on the YeonggeonUigwe and the SanleungUigwe. Gurodae makes diverse appearance In Uigwes.(久老代, 仇老代, 求路代, 仇老臺, 仇露臺, 求露臺, 仇累臺, 九累臺) It seems that Gurodae was an architectural member used on the roof. Especially that was a member of the eaves. Gurodae looks like a Pyeonggodae, located on the end of the rafters. But it differs in the shape compare to that of Pyeonggodae. Gurodae has the shape of combined members, Pyeonggodae and Chakgo. Chakgo is a member covering the space, between two Buyeons So Gurodae has the shape of prominence and depression. The result obtained by surveying the Uigwes is the Gurodae used until 1789. After the publication of HyeonlyungwonUigwe in 1789, that member was no longer existed on the other Uigwes. In 1794, the year making Hwaseong fortress, Gurodae divided into two members, Chopyeonggodae and Chakgo. Since then Chopyeonggodae and Chakgo never combined again.