Abstract: Construction projects become complicated and fragmented so that many specialty contractors are involved. In such changed environments, a general contractor’s overhead costs are increasing comparable to direct costs. In addition to an increase of volume, activities consisting of overhead costs play an important role in coordinating different participants who include different specialty contractors and client.
Introduction: This paper criticizes the traditional overhead costing in construction projects and proposes a new costing method as an application of activity-based costing. It is followed a case study to exemplify the new method. The study is confined to the perspectives of a general contractor, who is subcontracting most works. It is noted that numbers regarding a case study are modified because they are confidential to a company..
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