P T. Biggy Cemerlang is a plastic industry company that manufactures exclusive plastic hanger and household appliances. Problems that occur are the arrangement of goods storage and arrangement of goods carried out irregularly which results in the activity of importing, searching, and releasing finished goods to be hampered because the finished product is placed in the path of material handling. This study aims to provide a warehouse layout design using class-based storage and shared storage methods by maintaining existing warehouse area and minimizing material handling distances and is equipped with a simulation of the time of movement of finished goods from elevator to rack and from rack to elevator using ProModel. The initial layout evaluation was carried out using a material handling audit check sheet with a percentage of problems that occurred at 78,49%, included in the category of unfavorable conditions. The warehouse layout design is done by comparing the methods of shared storage and class-based storage which results in a total distance of shared storage of 936,635 m and class-based storage of 924,02 m. The chosen method is class-based storage because it provides a total gap of 12,615 m, so that the flow of activities in and out of finished products in the warehouse will be optimal. Improvements to the layout of finished goods warehouses by simulating the time of movement of finished goods from the elevator to the rack and from the shelves to the elevator using ProModel resulted in a proposed layout of the class based storage method of 79,95 hours, faster than the initial layout of 80,91 hours . Comparison of simulation results when the movement of finished goods from the elevator to the rack and from the rack to the elevator gives a time difference of 0,96 hours. Evaluation of the proposed layout is carried out using a material handling audit check sheet with a criterion of a percentage of improvement of around 100%