Determination of the Surface Roughness Values of Turkish Red Pine (Pinus brutia (Ten.)) Woods

The aim of this study was to determine the surface roughness values of Turkish red pine samples obtained from the seven natural growth areas in Turkey. The samples were cut with a circular saw, planed with a thickness machine, and sanded with a sanding machine ( with No. 80 sandpaper). After the samples were processed as radial and tangential surfaces in the machines, their surface roughness values ( R-a, R-y, and R-z) were measured in accordance with ISO 4288 ( 1996). According to the statistical results, the lowest surface roughness values were in the samples obtained from the Mugla and Samsun areas on the tangential surfaces that were processed with the thickness machine.