Abstract: A method for producing an interior a product comprising a corrugated cardboard base formed into a predetermined shape and a decorative skin layer laminated to one side of the cardboard base. Using a hot-press, a substantially planar cardboard base comprising a corrugated core and liners laminated to both sides of the core through thermoplastic resin films is formed into a predetermined shape by heat and pressure at a temperature high enough for remaining heat to be sufficient to melt a hot melt adhesive on the surface of the cardboard base after removal of the formed cardboard base from the hot press but not so hot as to scorch the paper of the cardboard base. The formed cardboard base is then taken out of the hot press and transferred into a cold press, thereafter a decorative skin is put on the surface of the formed cardboard base through a hot melt adhesive.