Pre-insulated steel pipelines are designed with a steel carrier pipe, polyurethane foam insulation and a high density polyethylene (HDPE) jacket. Using the coating definition option of the Ple4Win program this type of pipelines can be defined in the program, and soil-effects of the larger outer diameter compared to the diameter of the load-bearing pipe are taken into account. The program calculates the lateral soil reaction which can be used to determine the load on the polyurethane foam.