Wood Flour Courtesy of American Wood Fibers, Circleville, Ohio
Photo Courtesy of Ken Aschliman

Wood flour is wood reduced to finely divided particles, similar to cereal flours. It is used in a variety of products from soil amendments (like fertilizers and non-organic materials), extenders for glue, and absorbents for explosives. One of the first commercial uses of wood flour is thought to have been a gearshift knob for a Rolls Royce in 1916. The most commonly used wood flours for plastic composites in the United States are made from pine, oak, and maple.