21/09/2026
We’re happy to finally share Forsti Altholz, our reclaimed timber pavilion in Kassel!
Completed in summer 2025, the pavilion gives timber from the floor substructure of Kassel’s Erlöserkirche a new structural use.
Developed and built through a student design-build studio, the project combines material reuse, computational design and hands-on construction. Short reclaimed timber members are joined to OSB panels with beech wooden nails and dowels to form larger structural elements. Augmented reality supported the placement of timber and connectors during fabrication.
As a full-scale demonstrator within our research, Forsti Altholz explores how the dimensions and conditions of available timber can guide the design of a new structure.
Realised by EDEK | University of Kassel (Prof. Philipp Eversmann) and TWE Universität Kassel (Prof. Julian Lienhard) at the University of Kassel, in collaboration with Presse Sdgpluslab .
Research, teaching and project development: Hyo Wook Kim (EDEK) and Dongyuan Liu (TWE).
Thank you to our studio students, S. Schaaf, P. Schäfer, J. Mihm, T. Tarnowietzki, S. Gencan and A. Beganovic, for their contributions to the design, fabrication and construction.
We also acknowledge the support of E. Kozlov, QSL-Mittel Fachschaft, SDG+ Lab J. Taillebois, Kassel Erlöserkirche, J. Heise, G. Brinkmann, HELIX Schraubfundamente GmbH & Co. KG, K. Hinck, and everyone who helped realise the project.
📖 Read more about the material assessment, structural design and construction in our paper:
“Forsti Altholz: A Reclaimed Timber Pavilion with Wooden-Nail Composite Plates” — presented at IASS IWSS 2026 in Turin.
Full paper available on ResearchGate.