The examined company can be categorized as a smaller timber company with a long tradition. Like other companies in the sector it has to deal with challenges like shortening supply periods for its products, optimizing cost efficiency and solving various issues in planning and monitoring the production process. A business process reengineering plan for the processes of production preparation and production itself was prepared, so as also a proper (better) information support for both processes mentioned. Using methodologies like data flow diagrams, flowcharts and EPC (Event-Driven Process Chain), the current situation in the process of IT support was analysed to identify the main problems and their causes. Based on the analysis findings, some actions for better utilization of existing system functionalities and also a new reengineered production business process were proposed.