woodchip

lastu, hake chips as mass

puukuitu A small mechanically produced piece (chip) of wood, generally from 0,5 to 10 cm by diameter, used primarily as raw material for pulp, paper and construction boards, as well as fuel and mulch.
A small fibre of wood; especially such material as used to make ingrain wallpaper, aka woodchip wallpaper. See Wikipedia article on (w).