A piece of timber placed in a nearly horizontal position with one end against the side of the ship and the other against the side of a dry dock or dock to keep the vessel at a desired distance from the face of the dock.
Iceba lomthi elibekwe kwindawo ebukekela enecala elinye elijonge kwicala lenqanawe elinye lijonge apho kungekho manzi/ ligcine inqanawekumgama onqwenelekayo ukusuka enyeleni lolwandle.