abstract
age
annual
beech
beige
boarding
circular
core
crack
deep
endangered
fiber
fire
fuel
graphic
growth
hardwood
heart
industry
lumber
material
oak
plank
rare
resource
rich
ring
ripple
rough
round
section
separation
shadow
smooth
split
stick
stock
storage
striped
structure
stuff
surface
textured
timber
trunk
valuable
waves
wood grain
woodwork
year