The purpose of building the construction model of the crossing tower of the Roman Catholic Church of Notre Dame de Paris was to study and understand the construction methods and techniques of this building, which was designed by the French architect Eugène Emmanuel Viollet-le-Duc. Following the fire of Notre Dame's ecclesiastical tower, on 15 April 2019, the construction of this model was an attempt to reconstruct and study the structure and construction of this tower at a scale of 1 to 50. Due to the lack of structural documentation of this building and the old documents used for the design and construction of this model, the reconstruction took longer than expected. Very important information included the connection angles and overleafing of columns and beams, the diameter of beams and columns, as well as the stability of the building and the method of wood cutting. For this reason, the slightest change in the connection angle of the timbers affected the entire structure of the model.