Éxodo 36

And the stones were twelve according to the names of the children of Israel, graven according to their names Gr. for seals like seals, each according to his own name for the twelve tribes.

La longitud de cada tabla de diez codos, y de codo y medio la anchura.

The length of a board was ten cubits, and the breadth of a board one cubit and a half.

Ten cubits was the length of a board, and a cubit and a half the width of each board.