There are two different sized walls: Taiheki (the large wall) with approximately 255 to 260 centimeters wide, and Shoheki (the small wall) with approximately 155 centimeters wide (each wall has a height of approximately 310 centimeters).
壁面の大きさは横幅255-260cm前後の大壁（たいへき）と横幅155cm前後の小壁（しょうへき）の2種類がある（壁面の高さはいずれも約310cm）。