Fiberglass Ladders by Pak Fiberglass Industry Composites are manufactured with hollow FRP pultruded shapes. Our high-performance ladders boast a very high strength-to-weight ratio – much better than steel. The side sections are square tube, and the rungs are fluted tube. Ladders can be wall mounted or floor mounted, Vertical-Safe Reach the Height and are easily able to withstand extreme corrosive environments. FRP ladders are useful for applications such as wastewater treatment facilities, chemical or industrial plants, marine environments, manufacturing, metals & mining, pulp & paper, or any location where corrosion and ease-of-installation are considerations. Often these FRP ladders are chosen to conform with OSHA regulations, or to prevent the electrical conductivity issues present in aluminum and steel ladders.