The selection of supplier is one of the most critical decisions in the design and development of a successful production environment. In this study, a user friendly decision support system is proposed for supplier selection. This system guides the decision maker in selecting proper supplier via effective algorithms, such as the Analytic Hierarchy process (AHP) Cost analysis helps the user evaluate the results based on economical considerations. Selection of supplier is a time consuming process which needs extensive data exploitation. The process of supplier selection is a multicriteria decision-making problem with conflicting and diverse objectives. In this work a systematic methodology is presented under the consideration of multiple factors and objectives that are witnessed to be crucial to the construction process. The model includes building an analytic hierarchy structure with a tree of hierarchical criteria and alternatives to ease the decision-making.