Employee performances can lead to a better work quality in Small Medium Enterprise (SME) industry which could be enhanced by interventions of ergonomics. Ergonomics aims at ensuring a good fit between the workers and their work, thus maximizing the worker's comfort, safety and health, productivity and efficiency. This study aims to design an ergonomic workstation for cashiers at mini mart. Mini mart is one of a business under Small Medium Enterprise (SME). Postural analysis tools which are Rapid Upper Limb Assessment (RULA) and Rapid Entire Body Assessment (REBA) were used to determine and evaluate the risks that related to ergonomic risks. Plus, Nordic questionnaire was conducted in order to analyze the most painful and uncomfortable body parts of the cashiers. Besides that, anthropometry data and work envelope were also being observed and recorded. The design software that been used in this study is CATIA V5. The common ergonomic risks and occupational problems of workers in SME industry is Musculoskeletal Disorders (MSDs). The major finding was the cashiers had some complications to perform their job with their current workbench that may lead into ergonomics risks. The new workbench design was proposed to reduce ergonomic risks and improve cashier effectiveness and productivity. An ergonomic workbench for workers could lead to the highest productivity in SMEs industry.