The kumiko-bone (vertical and horizontal crosspieces such as found in a lattice) which were finished by yari-ganna (a plane consisted of an edge and a shaft like a spear which shaved wood by pushing), was thick and made of hinoki (Japanese cypress) with 3 cm on the front side and 2 cm on the lateral side, four vertical crosspieces and seven horizontal crosspieces had been set within the frame.
ヤリ鉋で仕上げられた組子骨は太く、見付け3cm見込み2cmの桧造りで、縦骨が4本、横骨が7本組まれている。