Thirteen poles are set upon the square platform, formed by lashing together fir and bamboo into a conical shape. Near the top, bamboo rings serve as handles for the climbers.
孤柱之上的四方大平台為孤棚平台，平台上再豎立 13 座孤棧，由杉木、青竹編紮而成，造型為圓錐狀，接近頂端掛有竹環，供搶孤手抓握。