This study aims to optimize the productivity of the plywood manufacturing system within the wood industry. A Petri nets simulation-based technique has been used to evaluate the availability analysis of the plywood manufacturing system. A Petri nets model is created to represent the modeling of the plywood system. The model is subsequently simulated using the licensed program Petri Nets (PN) GRIF 2023.7. This simulation is used to evaluate the performance of the system. In the PN simulation model, timed transitions are fired based on the failure and repair rate of the system. Immediate transitions, on the other hand, have their own guard function for firing which is coded using a logical AND-OR gate. This study also assesses the impact of the repairman on the system's availability. The system's availability is optimized by increasing the number of repairmen. However, once a specific number of repairmen is reached, the system's availability remains constant. This research is highly valuable for determining the optimal number of maintenance staff needed for the wood industrial system. [ABSTRACT FROM AUTHOR]