Tension parallel to grain, pure flexural stiffness, and modulus of rigidity of clear wood of seven eastern red oaks

Certain fundamental properties of small, clear wood specimens of seven spec ies of eastern red oaks were determined at the green and at 12 percent mois ture content: tension parallel to grain, static bending that includes pure modulus of elasticity, modulus of rigidity, and toughness. The following oa k species were investigated: southern red, northern red, black, shumard, wi llow, laurel, and water. The values reported here are only indicative and d o not represent the true property averages for the species because of the l imited number of trees and specimens tested. The reported values can be use ful if wood of these species is used for structural purposes.