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board 
Flat piece of wood less than 5 cm in thickness, used in carpentry and created when a log is cut along its length.
end grain
Surface of a piece of wood cut against the grain.
back
Surface of a piece of wood not meant to be seen.
edge
The two lengthwise sides of the board, which correspond to its thickness.
grain
Direction and arrangement of the fibers in wood. A straight and regular grain makes the wood easy to work with.
face side
Surface of a piece of wood carefully finished to be the visible side of a piece of woodwork.
