Fiberfence® is a fiberglass composite that has a lifetime warranty. It is maintenance free and very sturdy. Fiberfence composite fencing is made through a process called pultrusion. This type of fiberglass is three times the tensile strength of steel. Fiberfence is designed in many different styles and types of fence. It is sold in privacy style (that looks like a wood fence), ornamental style (that looks like a steel fence or wrought iron fence) or ranch style.