Needed time, energy consumption and referring wood drying costs are among the highest in wood product manufacturing. Analysis of the drying process is very complex as you need to know a lot of different elements influencing drying process. A model that can simulate and analyse conventional drying process by selecting the right drying schedule was prepared. Drying time and energy consumption were calculated. Costs analysis depending on different elements: wood species, wood thickness, initial and final moisture content, climate and construction of drying chamber was done. The model can help us compare and analyse energy efficiency of drying, comparing different drying techniques, and help us with decisions about new investments in our equipment.