The research presented in this paper aims to optimally use reclaimed logs to produce new engineered wood products. The process involved preparing the source material, mapping its geometry, and determining the strength and stiffness properties of the resulting boards through visual inspection and non-destructive mechanical testing. The non-destructive testing included four-point bending tests conducted on two faces of the lamellae to calculate the overall modulus of elasticity for the entire element. Additionally, tests were performed at six points to identify the strongest and weakest sections of the lamellae. After measuring, grading, and conducting non-destructive testing of the lamellae, the aim was to optimize the selection and assembly of the best-performing lamellae into three “super beams” that exhibited superior strength and stiffness. The remaining lamellae were used to produce regular beams. The performance of the final products was assessed by testing the stiffness and strength of the glulam beams, the shear strength of the bond line, and the integrity of the bond line in fire conditions.