A study on the hydrodynamic behavior of waste-wood particles and their fluidization with mechanical agitation of the bed is carried out. Results show that the source of wood particles has an important influence on their hydrodynamic behavior. It is also shown in this work that it is feasible to fluidize such particles by combining the action of gas flow with the mechanical agitation of the bed. Agitation velocities over 30 rpm are not; recommended for the fluidization of these kinds of systems.