Inventory is a collection of furniture and building parts from demolition sites around Helsinki. Together, these previously incongruous ceiling panels, pieces of linoleum carpet, electrical conduits, and a sofa build a miniature temple in the Design Museum’s small exhibition hall. While creating the piece, architect Liisa Ryynänen explored buildings threatened by demolition, where occupants have made alterations over time. Ryynänen finds intriguing the occupants' unique material combinations and peculiar spatial solutions.

In official architectural history, such as research and inventories, changes made by users are often viewed with disdain. These alterations are seen to diminish the building's value, and at worst, they can serve as grounds for the entire building's demolition. Ryynänen's work aims to find a different way to view these changes made by users. The piece suggests that we accept low-quality and seemingly tasteless solutions as existing and valuable layers, to which energy, raw materials, and work have been committed.