Simple products, characterized by low capital and production demands, are usually made in large quantities and distributed in small amounts to a large number of delivery points. In these cases, there is an importance to specify the effective distribution network. The aim of this paper is to design the distribution network model of the certain enterprise in order to optimize unit transport costs. In regard to the model proposal, customer requirements are the basis of this specific model and the capacity of distribution warehouses is the limiting factor. The proposal of the distribution network model is designed as a linear optimization task using the MS Excel “Solver Add-In”.