Fiberglass Beams FRP Beams – I Beam, H Beam, T Beam, U Beam, Wide Flange Beam Fiberglass beam is reinforced composite material consisting of continuous glass ... of glass fiber. At the same time the coating resin enables the beam smooth surface, anti-corrosion, hard to crack ... are substitute for metal beams.Our line of fiberglass profile shapes include angle, channel, beam, wide flange, tube, flat bar ...