Bamboo is generally better for interlocking than pine wood. This is due to bamboo's higher strength, durability, and resistance to moisture compared to pine. Bamboo has a higher modulus of elasticity and tensile strength, making it more suitable for structural applications where interlocking is required. Additionally, bamboo is naturally resistant to moisture, which helps prevent warping and splitting, common issues with pine wood when used in similar applications. According to the American Bamboo Society, bamboo has a modulus of elasticity of 10-15 GPa, while pine has a modulus of elasticity of 6-10 GPa. This indicates that bamboo can withstand greater loads and is less likely to deform under pressure. Furthermore, the U.S. Department of Agriculture Forest Service reports that bamboo has a higher bending strength than pine, making it more suitable for interlocking systems that require structural integrity.