Transportation of goods is a part of the business of manufacturing and non-manufacturing companies that carries high costs and has a wide range of possible combinations. Since the elements of transportation costs, such as fuel prices and maintenance, are constantly increasing, it is necessary to manage transportation wisely. The company Dajaković d.o.o. produces concrete and distributes it to the construction sites by its own trucks. The company operates in Split and the surrounding area. The costs of concrete distribution make up a significant share in this company’s total costs, and are, therefore, necessary to minimize by an optimal distribution plan. In this paper, the transportation problem was posted for a simplified concrete distribution problem, and its mathematical structure was set as a linear programming problem. The aim was to determine the optimal distribution plan, that is, one that obeys all the constraints related to capacity and demand while generating the lowest possible costs. Transportation cost calculations for different options were based on real business data. The problem was solved on a computer, using Excel Solver – an optimization Add-In for Microsoft Excel. Before that, a description of how Solver Add-In works was given and its usual application stated. Generated reports and results were interpreted in terms of cost-reducing effort and, consequently, contribution to maximizing profits. Guidelines were given for building an optimization model of concrete distribution which would represent a real business problem better.