You can build a stylish and simple room divider by using the end pieces of an old IKEA IVAR bookshelf to create ... once meant to bear the weight of heavy shelves of books, are quite durable ...

such as full-wall shelving units that serve as a privacy divider and storage area in one. As for outdoor options, the NÄMMARÖ divider is a popular IKEA find that adds privacy to any outdoor space.