Abstract
Wood is one of the oldest materials used as a major structural element before concrete and steel which has a greater ability to withstand loads. Engineered wood products (EWP) are a new type of wood created by wood engineers to address the increasing need for wood as a building resource. The growing interest in timber beams, aligned with sustainable development goals 9 & 11, reflects the rising demand for building materials that are both sustainable and structurally efficient. The strength of each wood species that has been classified in the strength grade is the most critical issue in the wood structure. The main objective of this research is to determine the optimum strength, modulus of rupture (MOR), modulus of elasticity (MOE), and failure of the Balau and Chengal species. For Balau and Chengal wood, the three-point bending test was applied to determine the bending strength for different species. From the results, it is observed that Balau is stronger than Chengal, with a strength of 218.17 kN and 189.05 kN, respectively. Balau has a greater MOR and MOE than Chengal species by 10.29% and 23.27%, respectively. When compared to Balau wood, Chengal wood cracks and deforms more readily when subjected to lesser loads.
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