On 18–19 December 2025, the 5th (final) LWT-FLOOR project workshop was held in Zagreb, Croatia, at the University of Zagreb, Faculty of Civil Engineering.

During the workshop, recent research results and project activities of the Croatian Science Foundation's “Innovative lightweight cold-formed steel–concrete composite floor system – LWT-FLOOR” project were presented and discussed.

A highlight of the workshop was the keynote lecture by Prof. Viorel Ungureanu, entitled “Recent Developments in Built-Up Cold-Formed Steel Components with Corrugated Webs”. The lecture provided valuable insights into recent advances, structural behaviour, and design aspects of built-up cold-formed steel elements with corrugated webs, highly relevant to the objectives of the LWT-FLOOR project.

We thank all the presenters and participants of the workshop. The workshop presentations will be published on the project web page soon.