The noise produced by machines in the factories of industrial facilities have negative effect on both physical and mental health of the workers. For this reason, in such factories, it is necessary that machines, which produce considerable noise be situated together in an area and separated from the sections of the facility that produce less noise. This study investigated the noise reduction values of multi-layered planar, L-shaped, and U-shaped barriers that were used to separate the sections with machines producing a high level of noise from the people working in the sections where the machines produce less noise. Given the shapes, the dimensions and the distances of the barriers to the receivers and also considering the differences in unit weights, this study has analysed the noise reduction values of various barriers through measurement; compared and evaluated the findings; and made further recommendations.