Ergonomics is the behavior, ability and limits for creating a systems, machines, tools, tasks and work environment that is productive, safe and effective for human use. It is a common problem in the Industrialized Building System (IBS) manufacturing without being noticed by workers. Hence, a method must be implemented so that this problem can be solved. In particular, the research was carried out to identify activities that can lead to ergonomic, therefore it will providing the solution to the workers when they do work. For data collection, questionnaire was used to carrying out this research, the questionnaire was distributed to workers in IBS manufacturing. After that, the data was analyzed statistically. Data were processed by using the SPSS software as method to get the relative index and frequency of percentages. The workers are satisfied with the solution to ergonomically. The results of this research are expected to help the workers from determining cause and solution to ergonomic and it will prevent this problem from recurring. Then the parties are involved in IBS manufacturing can give full attention to ergonomic factor.