Polypropylene is the most widely used type of polymer material. It is widely used in many areas from food to textile. Plastic injection molding is one of the most common methods used in the production of plastic parts. Many products in different sizes and shapes can be produced with plastic injection molding. In our study, carved furniture was produced from polypropylene raw material by plastic injection method and the parameters suitable for production were specified. Factors such as pressure, temperature, time, and speed are factors that directly affect the production and end product quality. For this reason, it is very important that the parameters are optimized well. The total cycle time of the production is determined as 40 seconds, and the final product is a product with 170 grams and 0.9 mm wall thickness. At the end of the study, the cost expenses of the sample firm were specified.