The objective of the study was to compare the surface quality of the processed samples made of black alder (Alnus glutinosa L.) wood when using two milling cutters endowed with different cutting plates. Defect free samples provided by a local company were used. They were processed by longitudinal milling under laboratory conditions when applying various cutting schedules. The surface quality of the resulted samples was expressed by the most relevant processing roughness parameters. The roughness of the specimens was measured with the help of a specific profilometer device of FRT type with white light. The results of this study showed that the two milling cutters generated smooth surfaces with no or low fuzzy grain and such quality of the processed surfaces can be obtained when using low feed speeds and light cutting depths. Findings of this work could help to use more efficiently the wood of black alder in the furniture sector.