The rising demand for ultra-thin veneers in applications such as furniture and interior design is attributed to their aesthetic appeal and lightweight properties. This study explores the production of ultra-thin veneers from three wood alpine species: Norway spruce (Picea abies (L.) H. Karst), silver fir (Abies alba Mill.), and beech (Fagus sylvatica L.), utilizing the Marunaka Super Meca superfinishing planer. Two different pretreatments, such as heat treatment with superheated steam at 105° and 120 °C, were employed to facilitate the processing of wooden boards. Key machining parameters, such as knife type, knife projection (veneer thickness), feed roller pressure, and horizontal blade angle, were system- atically adjusted during veneer slicing operations. The roughness of the wood samples was measured using a Mitutoyo SurfTest SJ-301 instrument. Results indicated that wood surface hydration is crucial for achieving uniform veneer thickness. This research provides insights into the factors influencing ultra- thin veneer production, offering implications for optimizing wood processing techniques. By adopting improved pretreatment methods and machining parameters, manufacturers can enhance surface finishes and consistency in ultra-thin veneers, paving the way for broader applications in high end furniture design and sustainable materials.