藝術與建築詞典根目錄
....物件層面
........組件 (層級名)
............成分
................<依特定背景區分之組件>
....................建築元素
........................<流通元素>
............................<階梯與階梯結構>
................................<階梯結構>
....................................<台階與台階結構>
........................................<台階結構>
|||............................................台階突邊
|||............................................豎板 (台階結構)
|||............................................階面
........................................台階
............................................凸面台階 (台階)
|||............................................樓梯梯級
|||............................................懸臂台階
|||............................................三角形台階
............................................楔型台階