Ergonomic design of chairs has been well studied by ergonomists. Chair design based on anthropometric data analysis is recommended. Weavers in carpet-weaving workshops use chairs with backrests and armrests. An anthropometric survey was carried out among weavers in Tabriz, Iran, to design a flexible chair and to improve its comfort on the basis of design dimensions. This study focused on the design dimensions of a chair for weavers and its recommended dimensions. The developed chair needs to be tested for its effects on weavers' posture and comfort.