Free stall systems having free stall units arranged in a substantially parallel relationship having coated rail members. The coated rail members comprising an elongated fiberglass material manufactured by grinding a starting fiberglass material prior to a coating being applied. The starting fiberglass material can be reclaimed and reused from other industries such that the fiberglass material may be cut to remove unwanted metal end portions and/or cut to a desired size prior to the grinding and coating steps. The coated fiberglass material can be coated with a UV-resistant material or other coating to maintain the longevity of the fiberglass member during its use. The coated fiberglass apparatus may be utilized in free stall systems, gates, fencing materials and other applications where a solid fiberglass rod or hollow fiberglass tube having a desired coating is desired.