This paper present the path we took adapting and implementing a MIP model for operational planning of the wood finishing operations in a sawmill. Following a company request to develop a planning tool for their finishing operations, we adapted a model developed by Gaudreault et al (2010). Prelimirary testing and results showed great potential. Using the Gusek open source solver for the problem, we had to further adapt the methodology to get solutions satisfying both solution time and operationnal constraints. The MIP model was integrated into the ERP system of the company, allowing the production of an initial solution that minimizes order lateness.