The objectives of the research weretwo: 1)to determine the density and dynamic modulus of solid and laminated wood of Enterolobium cyclocarpum, Tabebuia roseaand Juglans pyriformis,and2)to compare the magnitudes of these parameters, among the three species. Standard specimens were prepared and their apparent density and moisture content were determined. Transverse vibration tests were performed to calculatenatural frequencies and dynamic modules. The three species were differentiated on theresults of density and dynamic modulus, for laminated wood in front ofsolid wood. The density of laminated wood increases,compared to thesolid wood. The dynamic modulus of laminated wood, compared to thesolid wood, decreases for all three species. The density of solid wood accounts for 69% of the density of laminated wood. The dynamic modulusof solid wood explains 50% of the prediction corresponding to the dynamicmodulusof the laminated wood.