A chronological categorisation holds good for the evolution of most products, but that is really not exactly how a product design evolves. Design evolves with influence from a number of elements. It is not always the external elements but also the elements contained in a few old designs of the same product. So eventually every new evolution of the product is not only influenced by the previous design but also by the design of other products during the same timeframe, as well as the previously designed products. A method of classification of such products is looked into in this project. Proposed initially by Lakoff, the radial structure has been applied to see how classification of various products can be done and what advantages it provides to product designers.