The method is carried out by means of the stacked deposition of a series of layers of fibers and/or particles with a binder material and/or other chemical additives on a conveyor belt until a multilayer mat is produced, in which the layers are physically different from one another. The method comprises: defining the final thickness and density of the board; defining the number of layers forming the board and the type of material to be used for each layer; selecting and preparing the constituent material of each layer to be formed; depositing, in a stacked and staggered manner, the layers previously defined according to weight per m2 of each layer; pre-compacting and, optionally, pre-heating the mat; compacting the mat using pressure and heat. The invention also relates to the board produced using said method for the production of a symmetrical or asymmetrical, stable board.