Wood flour is finely pulverized
wood that has a consistency fairly equal to sand or
sawdust, but can vary considerably, with particles ranging in size from a fine powder to roughly the size of a grain of rice. Most wood flour manufacturers are able to create batches of wood flour that have the same consistency throughout. All high quality wood flour is made from
hardwoods because of its durability and strength. Very low grade wood flour is occasionally made from sapless
softwoods such as
pine or
fir.