One of the short pieces of timber on which the planks forming the floor of a scaffold are laid, one end resting on the ledger of the scaffold, and the other in a hole left in the wall temporarily for the purpose
Wooden beams placed in holes created in the castle wall They were used to support hoardings
Beams placed in holes to support a hoarding; horizontal scaffold beam Putlog Hole - A hole intentionally left in the surface of a wall for insertion of a horizontal pole