The chair of this furniture is widely used and there is a lot of variety and type in the market. Most companies in the furniture market produce the chair by default. The majority of these series and stacked chairs are not based on engineering calculations and aesthetic requirements. Therefore, the aim of the study is on aesthetics and durability optimization in industrial chair design. In the study, element sizes and joints were determined based on the strength analysis as a method, and 9 design (pine, oak and oriental beech) chair samples were produced with aesthetics optimization in the parts allowed by this analysis. At the same time, 9 industrial (pine, oak and oriental beech) chairs samples were obtained from randomly selected companies from the furniture marketing market. These chairs were subjected to rigidity test in accordance with TS EN 1728 and TS EN 1729-2. As a result of these tests, the chair durability values determined with the tests applied to these two groups of chairs were compared with each other. As a result of the comparison, the strength of the chairs obtained from the market was found to be less than the strength of the design chairs. In addition, ergonomic forms and measurements were not given importance in industrial chairs. These problems were corrected in the design chairs and presented to the industry institutions as suggestions.