Regarding the three story pagodas constructed after the three storied pagoda of Joruri-ji Temple and that of Ichijo-ji Temple, a central pillar was put on hari (a beam) of the ceiling of the first-level tower (architecture).
浄瑠璃寺三重塔・一乗寺三重塔以降の三重塔では、心柱はすべて初重天井上の梁(建築)から立つようになる。