The dramatic increase in the power of desk top personal computers coupled with advances in relatively low priced software (as compared to similar software for mainframes) has made it possible for the designer of fiberglass reinforced plastic (FRP) vessels to use advanced techniques which at one time were restricted to aircraft, spacecraft and military projects. A large FRP scrubber vessel 25 ft 7 inch (7.8 m) in diameter, a shell length of 79 ft 5 inch (24.2 m) and a skirt length of 14 ft 9 inch (4.5 m) was designed in accordance with ASME RTP-1 Subpart 3B with advanced computer software. The vessel was designed using a layer-by-layer Finite Element model. The material properties of the layers and macro layers was calculated using lamination analysis. Layer strengths were determined using in some cases with ASME RTP-1 strain limits and in some cases by laboratory testing. The vessel was field fabricated in Europe for a major US petrochemical company and the project was very successful. Keywords: fiberglass reinforced plastic, FRP, resin, glass reinforcement, laminate, lamina, design rules, lamination analysis, finite element analysis