Attic is often a difficult space to arrange. Thanks to modern building systems, the roof sloping is no longer a problem. In order to optimally, and above all, functionally use the space in the attic, it is worth using building systems, including various types of individually designed wardrobes, made to measure. Modern building technologies allow to make cabinets adapted to slants, bevelled from one side, from the rear, or even adjusted from both sides. The wide selection of profiles and materials for fillings gives unlimited possibilities of interior design. Depending on customers’ preferences, the purpose of the room, as well as the conditions of a space, it is possible to create furniture that is not only functional, but also aesthetically pleasing, constituting a real interior decoration.