The aim of this study was to determine the effects of impregnation on the surface roughness and bonding strength of different wood species. For this purpose, test specimens prepared by Scots pine (Pinus sylvestris Lipsky), Uludag fir [Abies nordmanniana (Stev.) subsp. bornmullerana (Mattf.)] and European Oak (Quercus petraea Liebl.) which are widely used in the outer environment conditions, were impregnated with Vacsol-Aqua and were glued with Polyvinyl Acetate (PVAc) and Desmodur-VTKA (D-VTKA). At the impregnated test samples, while the surface roughness was tested according to ISO 4287, the adhesive bonding was tested according to TS EN 205 standard basis as well. As a consequence of experimental results, although, the Vacsol-Aqua impregnation has caused to an increase on the surface roughness, it has caused to a decrease on the bonding strength. The maximum value of surface roughness at the impregnated sessile oak test specimens, the maximum value of adhesive strength at the control samples glued with D-VTKA, were determined. At the wood materials impregnated with Vacsol-Aqua, it was recommended that while the usage of scots pine and fir wood at the places where expecting the surface roughness is lower, the usage of sessile oak glued with D-VTKA at the places where expecting the bonding strength is higher.