One of the primary reasons homeowners and contractors choose fiberglass fence posts is their remarkable durability. Unlike traditional wooden or metal posts, fiberglass is resistant to various environmental conditions. It does not rot, warp, or corrode, which means it maintains its integrity over time, even in harsh weather conditions. Fiberglass can withstand extreme temperatures and is not susceptible to insects, such as termites, making it a low-maintenance option that can last for decades.