We analyzed 1934 wooden remains used in 17 storehouses, 23 cellars, 86 drains, and 5 wells at the Nihonbashi 1-chome site, Tokyo, and discussed the transition in construction timber usage in townspeople’s buildings of Edo during the early modern Edo period. Before the mid 17th century, various softwood and hardwood were used for drains and cellars, probably derived from local timber production and trade system to answer the urbanization and increased demand in Edo. After the mid 17th century, various softwood including Pinus densiflora were used for drains, and Thujopsis dolabrata was used for cellars. For storehouses that increased in the 18th century, Pinus densiflora, Castanea crenata, Cryptomeria japonica, and Tsuga were used for their foundations, and recycled timber was used for their support, reflecting establishment of timber industry and trade system allowing proper selection of materials for the main frames and that of a timber recycle system. Since the late 18th century, use of Cupressaceae decreased, and Pinus densiflora, Cryptomeria japonica, and Larix came to be used, reflecting extensive plantation of these trees. Throughout the Edo period, population increase and large fires such as the Meireki fire had a great impact on such transition in construction timber usage.
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