board
board
That would depend on the thickness of the plank. It would also vary, depending on the type of wood, and where you buy it (what country, for instance).
Wood, timber, tree .... plank
one feet length of wood
Pine wood is good for toys because it is a solid wood and it is less likely to be damaged (:
board
board
board or boards
Board.
board
'Board' must be the answer you are looking for.
Board
Board.
Planking. As in acting like a plank of flat wood.
The plank was of wood, a few inches wide
its stronger than a wood plank, and that means it can be thinner, therefore lighter
A plank.