Focal or accent walls can be a really effective decorating technique. Limiting a bold color, interesting pattern, or decorative woodwork to just one wall has some definite advantages. It’s a great way to test a statement design without the commitment required if you put it on all four wall s of a room. An accent wall may be a cost-effective way to bring a high-end product you love, like wallpaper, into your room. And a focal wall can add drama and visual interest to an otherwise bland room.