The goal of this experimental workshop was to offer students of the five design studios of the Department of Architectural Design II , FA CTU more than is demanded by the official studio course programme – the possibility to test their designs on 1:1 scale. The assignment was to design a staircase 2.8 m high respecting the Czech regulations that apply to residential stairs design. Due to a very tight schedule the material was determined in advance. The dimension of large-size spruce cross-laminated timber boards was arranged in order to allow production of load-bearing components from one piece. The course of the workshop had only general framework and schedule. The exact teaching method of each phase was under direction of the leaders of each studio. The video shows the design-building process of one of the staircases. At the end, all 5 staircases were displayed in the courtyard of the Faculty of Architecture building.