Parallel lines of different widths creating a harmonious whole, or a linear wood? The stunning and sophisticated Ackord wallpaper from Boråstapeter is another popular classic from this leading Nordic wallpaper brand. A mesmerising orchestra of stripes designed by Alfredo Häberli, it’s a pattern which is incredibly difficult to date, but which would work in both a contemporary and vintage interior. Ackord wallpaper appears in Boråstapeter’s wonderful Jubileum collection, celebrating a century of the brand’s classic wallpapers.