A sufficiently long beam cut from a thorn-bush could be found only in the house of Haman, which had to be demolished in order to obtain it. The cross was tall enough for Haman and his ten sons to be hanged upon it. It was planted three cubits deep in the ground, each of the victims required three cubits space in length, one cubit space was left vacant between the feet of the one above and the head of the one below, and the youngest son, Vaizatha, had his feet four cubits from the ground as he hung.
Legend of Haman
Legends of the Jews 12:235