abstract
aged
backdrop
background
blank
brown
bumped
close
closeup
construction
dark
decorative
detail
diagonal
diamond
diamondplate
dirt
dirty
durable
floor
gray
grey
grid
grip
grunge
grungy
hard
heavy
industrial
industry
iron
lines
material
messy
metal
metallic
old
panel
pattern
plate
rough
rust
rusty
sheet
steel
strong
surface
texture
urban
weathered