A construction project demands large quantities of material, and material therefore endures a big portion of the projects budget. The focus on short-term profitability is therefore a set-back in the effort of the construction industry’s attempt to develop the industry. Construction logistics consists of many processes and activities which are related to each other by complex relationships. Materials are received, moved, etc. creating a pattern of movement on the construction site. Reflecting the reality on site, a study was performed studying the movement of materials connected to activities on site, with the purpose to display the costs of the internal material logistics. The three cases indicate that planning is a key-factor when reducing costs connected to site-logistics. Where to put material, to which activity the material belong, and for what it should be used, are aspects which form the foundation for material-flow and material-cost-flow