Nowadays, an interior designer must know the CAD software tools in order to be competitive and successful on the market. These tools became a fundamental part of interior design business. Even an entry level designer is expected to have knowledge of more than one CAD tool for interior designing. Hand drawn designs are old-fashioned and no one prefers them. It is much easier to design using these software tools, rather than the traditional method of hand drawn designs. In addition, the output will be simply better and more realistic.