abstract
aging
background
bark
brown
circle
close up
closeup
concentric
construction
crack
cross
cut
dead
grunge
hardwood
industry
life
line
log
lumber
material
natural
natural texture
nature
nature background
oak
old
organic
pattern
pine
plank
plant
ring
rough
rustic
saw
section
shape
striped
stump
surface
texture
timber
tree
tree ring
trunk
weathered
wood
wooden