Method for producing a decorated wall or floor panel, comprising the method steps: a) providing a melted polymer mass; b) extruding the melted polymer mass through a die; c) finish-sizing the melted polymer mass to form a plate-like carrier by means of an assembly of a plurality of rotatable rollers (6, 7), wherein the individual rollers (6, 7) are arranged one above or behind the other and each individual roller (6, 7) forms with adjacent rollers (6, 7) at least one finish-sizing nip through which the melted polymer mass is passed, wherein the finish-sizing nip heights are variably adjustable by a horizontal and/or vertical movement of individual rollers (6, 7) during the production process; d) applying a decoration reproducing a decoration template onto at least one sub-region of the at least partially finish-sized carrier; and e) applying a protective coating to at least a sub-region of the decoration, characterized in that the finish-sizing in method step c) is carried out by use of at least one main roller pair consisting of two rollers with a larger diameter and at least three finish-sizing rollers arranged one behind the other with a smaller diameter compared to that of the main roller pair and wherein the height of the finish-sizing nip of the main roller pair H H differs from the heights of the finish-sizing nips of the finish-sizing rollers H K by greater than or equal to 10% and less than or equal to 50%, wherein the height of the last and/or the penultimate finish-sizing nip is selected such that the carrier is compressed in its height by a factor of less than or equal to 10 % and greater than or equal to 3%. a) providing a melted polymer mass; b) extruding the melted polymer mass through a die; c) finish-sizing the melted polymer mass to form a plate-like carrier by means of an assembly of a plurality of rotatable rollers (6, 7), wherein the individual rollers (6, 7) are arranged one above or behind the other and each individual roller (6, 7) forms with adjacent rollers (6, 7) at least one finish-sizing nip through which the melted polymer mass is passed, wherein the finish-sizing nip heights are variably adjustable by a horizontal and/or vertical movement of individual rollers (6, 7) during the production process; d) applying a decoration reproducing a decoration template onto at least one sub-region of the at least partially finish-sized carrier; and e) applying a protective coating to at least a sub-region of the decoration, characterized in that the finish-sizing in method step c) is carried out by use of at least one main roller pair consisting of two rollers with a larger diameter and at least three finish-sizing rollers arranged one behind the other with a smaller diameter compared to that of the main roller pair and wherein the height of the finish-sizing nip of the main roller pair H H differs from the heights of the finish-sizing nips of the finish-sizing rollers H K by greater than or equal to 10% and less than or equal to 50%, wherein the height of the last and/or the penultimate finish-sizing nip is selected such that the carrier is compressed in its height by a factor of less than or equal to 10 % and greater than or equal to 3%.