Product separation during harvesting is often necessary to meet the needs of the many users of wood fiber. This report presents the results of a study whose goal was to determine the least expensive method for sorting six products using a harvesting system based on a feller-buncher, a single-grip processor, and a shortwood forwarder. In addition, the study was designed to determine the impact of product separation by the forwarder based on quality criterion. The results indicated that there was no advantage to species separation with feller-buncher; on the contrary, it was preferable to carry out all sorting with the processor. Furthermore, it was observed that the forwarder could perform a coarse separation based on quality class (decay content) at no additional cost.