一切經音義 21.328

21.328

基堵（堵當古反賈逵曰基始也公羊傳曰五板為堵何休曰八尺曰板一堵凡四十尺也今謂創始築墻基為宮空之本時者也）。

基堵 [Foundations and walls] (堵 is *tuX* [當古反]. Jia Kui says: '基 means beginning.' The Gongyang zhuan says: 'Five planks make one du [wall unit].' He Xiu says: 'Eight feet is called a plank; one du is altogether forty feet.' Here it refers to the beginning of building a wall foundation, the time of laying the root for a hall or building).