These two wings share a centrally located common hall, with a glass wall facing the northern atrium. Here one will find entrances to the lecture rooms. In addition, one can access the indoor "street" that connects to the Main Library and the Theoretical Subjects building. The common hall is decorated by the ceramic artist Yngvild Fagerheim. Ceramic tiles, decorated with various images, are tiled onto the walls. There are also tiles decorating sections of floor, which is made of slate from Alta.