Abstract: The aim of this study was to investigate the effect of impregnation with timbercare aqua on the Modulus of Elasticity (MOE) in bending of some woods. According to Duncan test results, for non-impregnated woods MOE were found the highest in Oriental beech (12,490 N mm-2), the lowest in Oriental spruce (8,165 N mm-2). For impregnated woods, Modulus of Elasticity (MOE) were found the highest in Oriental beech once impregnated (14,360 N mm-2) and the lowest in Scotch Pine thrice impregnated (7,246 N mm-2). The results show that except for oak samples, one times impregnation with timbercare aqua due to the increasing MOE and impregnation with timbercare aqua can be useful for the wood material subject to bending stress, which needs high elasticity.