Abstract: The present invention relates to a slat wall formed as a three dimensional body with a predetermined height, width and thickness. The slat wall of the invention comprises a core, presenting a first and a second: face and at least one groove extending inwardly from the first face of the core and having a length extending in the direction of the width of the slat wall. An insert comprising et least one wail which defines a cavity, is arrange in said groove, and at least: one covering layer covers the first lace of the core and a part of the groove. The slat wail further comprises a slit miming through the covering layer and through the wail of the; insert, which slit has an extension in the direction of the width of the slat wall. The slat wall of the invention is easy to handle and simple to manufacture. The design of the slat wail enables the manufacturing of a receiving groove with a T-shaped profile without the need to mill out such a profile in the core.

Abstract: Method of placarding comprising: feeding a sheet of corrugated cardboard through a printing unit printing on at least one surface of the sheet by a digital print-on-demand technique, the said sheet constituting an entire placarding surface and the matter printed by the printing unit constituting a complete advertising image. In a subsequent process step inline with the printing step at least one score or groove is made in the sheet in the feeding direction thereof and the sheet is folded about the score or groove to make an easily transportable unit of the sheet. The folded sheet is then transported to a placarding site having a holder for the sheet, where the sheet is unfolded and applied in the holder.