Dunhuang Manuscripts and Song Yuan Common word are important sources for the common words in the Great Chinese Character Dictionary. A comparison with the original source facsimiles reveals that a significant number of the vulgar character entries adopted by the Great Chinese Character Dictionary from these works are, in fact, spurious or erroneous characters that ought to be removed. Furthermore, issues exist regarding these common words, such as relatively arbitrary form standardization, inconsistent criteria for inclusion, and incomplete clarification of the relationships between characters. These problems require correction based on a comprehensive re-examination. Additionally, the citation examples for these common words are not exhaustive; they need further supplementation, with clear specification of the edition information for the sources cited.

This study is to present Chinese character notation for common use through investigation of examples and graphonomy related literature with beam and purlin of wooden members and its conclusions are as follows. It suggests two commonly used Chinese characters of beam and purlin. The first method of indicating them is Riyang(樑) for beam and Hang(桁) for purlin and the second method is Bo(保) for beam and Hang(桁) for purlin. Riyang(樑) as the first method was already used in the Joseon period and was profitable to convey limited meaning as wooden term compared to Riyang(樑) with wider meaning and Bo(保) as the second method contained logical association and hieroglyphic connection of Bo(保) as the Korean character. Hang(桁) for purl in was presented by both the first and second methods and it was already used in the Koryeo age, also commonly used as the term of purlin in China and Japan and it was also presented as letter containing logical and hieroglyphic connection with Hyeng(行).