What a hakkyakumon is
A hakkyakumon is a gate with four main posts in a row carrying the ridge and four bracing posts before and behind them, eight in all. Miyagi Prefecture explains that such a gate has twelve posts: four main posts at the centre and four bracing posts on each side, the eight bracing posts giving the type its name. Doors hang between the two central main posts to form the passage. It is also read yatsuashimon and written with a different character for legs.
The front is three bays wide, with the central bay as the passage and the side bays often housing guardian-king statues, so the form was widely used for temple guardian gates. The related Shikyakumon has two main posts with two bracing posts before and behind, four in all, and the hakkyakumon is essentially a larger version of it.
Reading the records and the gate
Records name the type. The gate of Joshoji in Kakamigahara, Gifu, is recorded as a hakkyakumon with a copper-roofed hip-and-gable roof, dormer gables and cusped eave gables front and back, housing guardian-king statues. The hakkyakumon of Oda Hachimangu in Hachinohe, Aomori, built in 1854, was called a guardian-king gate until the separation of Shinto and Buddhism. The Japan Tourism Agency introduces the guardian-king gate of Naritasan Shinshoji, built in 1831, as a hakkyakumon.
On site, count the posts. Four main posts in a row with four bracing posts before and behind make a hakkyakumon. Even in two-storey gates the post layout of the lower storey can show the hakkyakumon form.
References
- 三十三間堂官衙遺跡現地説明会資料｜宮城県
- https://www.pref.miyagi.jp/site/maizou/33gendou.html
- 小田八幡宮八脚門｜青森県
- https://www.pref.aomori.lg.jp/soshiki/kyoiku/e-bunka/juho_kenzoubutu_49.html
- 成田山新勝寺 仁王門｜観光庁 地域観光資源の多言語解説文データベース
- https://www.mlit.go.jp/tagengo-db/en/H30-00413.html
- 貞照寺門｜国指定文化財等データベース（文化庁）
- https://kunishitei.bunka.go.jp/bsys/maindetails/101/00005611
Last verified: 2026.09.26