The sangarado of Kaisando of Todai-ji Temple in daibutsuyo introduced by Chogen is a style that sets fukiyose of two horizontal crosspieces, with vertical crosspieces in the center and crosspieces in shinogi (the upper part of a timber that are cut diagonally on each side in order to form a peak).
重源の大仏様の東大寺開山堂の桟唐戸は、横桟を二本吹き寄せにして、中央に縦桟を配し、桟は山形に鎬（しのぎ）をとっている。