“…It was found that the density of the panels did not correlate with the mechanical properties, with significant and negative reductions in MOE and MOR, with increases in density. This implies that flexural strength does not depend only on basic properties, such as density [ 48 ], but may be associated with the slenderness index [ 49 ] of the particles used, and how the eggshell that does not have a pattern in the length of its fragments, but exerts a negative influence on the panels.…”