Nowadays, the world is facing a lot of serious problems because of the population explosion and the resource shortage. Overcrowded living area creates economic and social issues, and the limitation of material choices not only lowers the quality of house holding merchandise, but also leads to the raise of the price. Due to all these complicated factors, multi-function furniture becomes one of the solutions for space sustainability. Multi-function furniture combines different functions into one piece to control the material consumption, creates opportunities for the interaction between the object and human, and effectively save user's space. At the same time, the price of multi-function furniture, by contrast, is usually more reasonable than purchasing several furniture pieces together. This kind of design becomes more and more popular among young generation, and it is the trend of today's furniture design.
Through the exploration of human's living habits and the study of contemporary multi-function furniture, I designed a piece of furniture, Chinese Bench with the concept of space and material sustainability. This thesis is based on the field study of ergonomics and furniture design theory, illustrates the final prototypes of my multi-functional furniture. The design can be served as sit, table and storage, and it emphasizes the importance of space use and valuable customization for user at the same time. The design aims to provide a more efficient living mode in limited space, and reduce the material consumption. At the same time, the pattern and graphic forms are adapted in this design; they can meet people's need for beauty and function at the same time, let the user obtain the sympathy and entertainment from the design