The aim of this study is to clarify characteristics of refurbished traditional Japanese timber houses, focusing on compositions of frameworks in main rooms after refurbishing. Firstly, shapes of main rooms are analyzed according to three levels of composition; wall, horizontal ceiling and the adjoining relationship to sub-structure, and partitions in main rooms are analyzed too. Secondly, characteristics of frameworks are analyzed with regard to shapes of timber and arrangements of beams. In conclusion, several types of expression in framework arrangement in main rooms are pointed out, and their characteristics are clarified such as the contrast between framework and shape of main room.