The results of four recent studies on the flexural and shear behavior of hardwood glulam beams manufactured with red oak, red maple and yellow poplar are summarized. Most beam cross sections were fabricated with lower-grade visually stress-rated lumber in the cores and with E-rated lumber in the outer 50% of the section. To evaluate wide-width beams made from narrower-width lumber, several test beams were fabricated with non-edge glued multiple-piece laminations. Beam strengths and stiffnesses were predicted by ASTM D 3737 procedures and verified by load testing in accordance with ASTM D 198. The results strongly suggest that hardwood glued-laminated beams with strength and stiffness, respectively, of 16.5 MPa (2400 psi) and 12.4 GPa (1.8 x 10 psi) are technically feasible. ASTM D 3737 procedures conservatively predicted the flexural and beam shear strengths and accurately predicted the stiffness of hardwood glulam beams. The volume effect on the flexural strength of hardwood glulam beams was satisfactorily characterized with the volume effect equation published in the NDS (AF&PA, 1991) and an exponent value of 0.10.