Satisfaction and a safe working environment are essential issues affecting workplace productivity. This study provides an ergonomics intervention through which workers perform the task in a safe working environment which increases workplace productivity. A subjective assessment, job factor questionnaire was conducted among 39 sewing workers in the garment industry. The questionnaire is used to assess the ergonomics risk factors which are main cause of developing musculoskeletal disorders among sewing workers. Results revealed that workers could allow to take personnel time, fatigue and delay allowances (PDF allowances) whenever they want, instead of scheduled breaks. Also, observation collected from factory visits, it is observed that there were several ergonomics and environmental hazards that affects the health and efficiency of the workers. It is recommended to implement several ergonomics interventions in the workplace so that workers can work in a safe environment and increase workplace productivity.