In recent decades the process of environmental degradation and the ecological environmental issues became very popular. In order to preserve the environment, the use of biomass materials has been intensified. In this sense, the area of polymer composites reinforced by natural fibers represents a good alternative in the field of engineering materials for design applications. The main objectives of this study is the processing, characterization and analysis of composite applying feasibility for the flooring and tiles. This composite is made of a polyurethane resin derived from castor oil (Castor oil) and ubuçu fiber (Manicaria saccifera). The composite process was performed with the compression molding technique. Ubuçu fibers were used as a tissue without any treatment and stacked with orientations from 0° to 90°, trying to keep an isotropic behavior. The characterization of the ubuçu fiber was made by the following tests: traction, X-ray diffraction, TGA, SEM / EDS, density, FTIR, DSC, and weight. This first part was necessary because the fiber ubuçu is not known by the academic community in terms of their chemical and mechanical characteristics. In the composites manufacture, for comparison purposes, was used the two resins castor proportions, and epoxy resin, this last being one of the most used in the polymer composites manufacture. The composites were characterized by the following tests: bending, normal and parallel compression, impact, DMTA, abrasion and SEM / EDS. The results of the characterization of ubuçu fiber showed that it does not differ from other fibers plant commonly studied, but in the tensile test, it showed superior resistance if compare to other fibers plant found in the literature. The results in bending, compression and impact tests indicate that the mechanical properties of the composite, castor oil and ubuçu fiber, were higher than similar composites reported in the literature. The abrasion test, the composite made of castor oil and ubuçu fiber were compared to two palms (Bactris gasipaes and Cocos nucifera) and even with inferior properties, the composite is suitable as a material in the manufacture of floors and walls. It was developed in accordance with the methodology of Industrial Design, a floor in the form of cue for observation of aesthetic details, which was selected to be exhibited in 24 Brazilian House Museum Award and a Patents registration material by PUC Rio.