Gain of scale needsin order to decrease production fixed costs, in addition with large segmentation and the appearing of new markerts, makes more and more important to produce in high quantities and on the other hand to sell in small selling quantities. The inventory costs, and inventory levels, of finished goods and raw materials in the whole supply chain; the plants location more and more far from the consumer´s center (due to tax benefits, infra- structure and environment implications); makes the distribuition center concept one of the most important issues in the supply chain management of any company. This is also a very important subject on the literature, about the many ways of implementation, economic viability of each alternative, and a way to add value to the business. No matter the model is going to be used, it is very a impportant question, the location. And this is envolves distribuition costs, inventory costs, warehousing and handling costs, operations fixed and variable costs, and further the demand forecast of each SKU. Another variables that need to be considered in practice are the legal implications, mão de obra, Real State, transportation equipments and merchandising issues, envolving the product and the target consumer. Such a specific and software easy run technique was chosen for each class of problems: Sales Forecast Model - A Dinamic regression model was developed and the software Forecast Master was used. Shortest path algorithm. Distribuition Center location and size model - A mixed integer program was developed using Branch-and-Bound technique, implemented with OSL software. In order to evaluate the algorithms performance in comparison with other avaible techniques, will be mentioned another models: Demand Forecast - The Exponential Smoothing technique (holt-Winters), and the Box and Jenkins method. About the distances between points - Fan out shortest path algorithm, and the formulation of the shortest path problem stated as a minimum cost flow algoritm. About the Distribuition center location and size model, Such a alternative Integer program approach was tried: the cutting planes. All the tecniques were applied using a countywide bens de consumo company database, whose distribuition is made through independents distributors that buy and pick the products directly in the production plant, and after selling to the final consumer or point of sales in general. This study was used as a tool in practice in the company Distribuition center location decision making.