They would “lock” the hands behind the back and load the stones onto him.
A small wooden board was secured with ropes, and they’d pile the stones on top.
The large stones were carried on the “nómos” (shoulder).
Animals were also used to transport stones.
They would fasten planks to the lower part of the pack saddle with ropes, then load the stones on top.
The very large stones were rolled into place on the wall, using beams leaning diagonally against it.