Sheet materials
Plywood, MDF, and veneer: the manufactured boards.
VeneerWood sliced into thin sheets, thin enough to bend and glue onto a backing, with one log yielding several matching sheets.
PlywoodA manufactured board of thin wood veneers glued together with the grain of each layer crossed against the next.
MdfA manufactured board of pressed wood fibres with no single grain direction, so it behaves differently on the bench from solid timber.