The brittle nature of cement-based materials causes them to perform poorly in tension but well in compression. Incorporating fibers can help reduce the shrinkage cracks that eventually appear. Areca fiber (AF), a sustainable construction material made from agricultural waste, offers several advantages: it is lightweight, renewable, and provides better corrosion resistance. This study marks the first time AF has been used in a cement-based material. A study was conducted to examine the impact of adding AF (0%, 0.1%, 0.2%, 0.3%, 0.4%, and 0.5% by mortar volume) on the mortar's characteristics. Tests assessed mechanical strength (compressive, tensile, and flexural). Due to the lack of published data on concrete containing AF, the results were compared to those from control samples. At a 0.2% AF concentration, the concrete's mechanical strength increased. Beyond this point, the strength decreased but did not fall below the control mix level (0% AF). Additionally, an increase in AF percentage significantly mitigated shrinkage. The 0.2% AF mix exhibited better durability. According to this study, 0.2% AF performs exceptionally well in concrete compared to other mixes.