Timber has many desirable attributes, but some weaknesses.
It will burn or may decay or suffer insect attack unless treated against those.
It has limited strength compared with other materials, and has a limited size.
never
Iron is not resistant to oxydation and acids.
build stuff
Timber is converted for wooden plane models and other construction kits.
you could burn it or use it as a building material
Timber.
planed
none
a lot
it gets cut down and turned into timber.....somehow
timber
Lumber jacks.