a long thin board with one edge thicker than the other; used as siding by lapping one board over the board below
A narrow board, usually thicker at one edge than the other, used as siding for houses and similar structures of frame construction.
A clapper board; a device used in film production, having hinged boards that are brought together with a clap, used to synchronize picture and sound at the start of each take of a motion picture or other video production.
cover with clapboards
To cover with clapboards.