Based on the Timoshenko equation the paper deduced frequency equations for calcula-(ting) bending and shear modulus.By the dynamical vibration and static bending test,it is found that the dynamical test method has a good estimation of the elastic properties of dimension lumber.The correlation coefficient of the regression equation from all data is above 0.7.The dyna-(mical) test method can be used in practical application for dynamical evaluation on elastic properties of full-size dimension lumber.