Improving productivity has been a key priority in the warehouse industry to meet the target demand. One of the most important factors influencing productivity is space utilization. This research analysis is carried out to determine the warehouse capacity utilization rate and its long-term viability. This study employs the Symptom Versus Problems Theory (SVP), mathematical computation, and related simulation. Many studies project that space utilization is the root cause of the entire network problem for the case company's warehouse that was selected for this study. The scenario was further estimated using a Frazelle Model, combined with discrete event simulation. A new layout design was built and displayed, including the key activities and operational areas with better space utilization and process throughput.