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Continuous fiberglass roving is placed in the open, heated mold in alternating layers, wetted out thoroughly with resin. Such a process produce an integral, one- piece construction, which offers excellent corrosion resistance and bi-directional strength as well. The mould is heated to cure the panel after such a fiberglass-roving- weaving process. If embedded grit top surface is required for extra anti-slip, the mould will receive grit at this time before the panel is cured. Upon curing, the panel is ejected from the mould, and at this time, the panel will typically have a concave(meniscus) top surface for slip resistance. Should a standard applied-grit top surface is needed, a secondary operation follows, that is: the grit will be bonded to the top of the completed panel.