Also called fiberglass reinforced polymer or “FRP”. Most companies use the terms interchangeably as do we but we try to reserve FRP for our RoyaLite column covers in an attempt to differentiate them from our cast option. As described above fiberglass porch columns come in many compositions. The most popular square fiberglass column in the market has very little fiberglass strand in it (RoyalCast). In short a fiberglass column is a composite column that has any amount of fiberglass strand in it. An exterior fiberglass column typically comes with a capital base and shaft but we sell them individually if desired. Watch this video to learn more about the 3 most common compositions of fiberglass columns.