Abstract
There were many systhems of modular co-ordination about the building of military class in the Edo period. They were "Den'okushu (a part of Shoumiyou)", "Buke-hinagata", "Buke-Denkakutatejiwari", "Daiku-hinagata-taizen". "Den'okushu" was written by Heinouchi-seishin", who took service with a chief (called "Daitouryou") at the department of building construction in the Edo shogunate. Many buildings of the Edo shogunate were co-ordinated by the module of "Den'okushu". The buildings in the Edo castle were the same. "Shiroshoin" was the standard scale in there. Then, I recognized the practical process at the modular co-ordination of "Den'okushu" in "Shiroshoin". Conclusion: "Shiroshoin" was constructed by two measurment. One was "element measurment". The other was "space measurment". "Element measurment" obeyed the modular system of "Den'okushu", but "space measurment" was not. This was the design of Koura-Wakasa, Shiroshoin's architect. So, "Shiroshoin" was co-ordinated the module of "Den'okushu". At the same time, Koura-Wakasa designed creatively.
