This work explores the Geometric Modeling possibilities as a tool for professional use to the Furniture Design by Interior Architecture professionals. It is considered that the modeling process contributes to the characterization of furniture, since it is necessary the definition of the geometric procedures to generate and control the represented form. Searching for evidences of the kind of contribution, some experiments were developed using chairs from different periods as the object for representation. Three chairs were selected to model, from three different historical periods. The modeling processes were based on the use of 3D Studio Max, registered, analyzed and compared. The results defined references to the use of Digital Graphics to support the representation and also to studies of the furniture form.