The high-quality inlaid parquet floors preserved in the representative rooms of Palais Liechtenstein date back to the mid-19th century and are attributed to the workshop of Carl Leistler (1843). The finely crafted marquetry decors attest to the high level of craftsmanship in historic joinery and parquet art. Some elements are linked to the early technical innovations of Michael Thonet in the field of glued and bent wood.

The restoration involved approximately 1,000 m² of parquet surface and spanned over four years. At the beginning, the state of preservation was extremely critical, as moisture had entered the building over a long period due to wartime damage to the roof during World War II. As a result, the parquets were extensively soaked, veneers detached, inlay work disintegrated, and the supporting structures were significantly damaged.

Following the removal of later floor layers, the detached veneers and inlay elements were reattached and supplemented by hand using glutin glue. Missing sections were remanufactured using historic techniques with steamed and bent wood elements. The cleaning was carried out using the dry ice process, which allowed for the gentle removal of soiled wax layers. The process concluded with a glue-bound barrier layer and a matte oil and wax treatment, coordinated with the historic appearance of the parquet.