Prebid planning is an essential function of construction project management that allows contractors to obtain projects with low cost while achieving other criteria. It also helps contractors during project execution and management. This research applied the manufacturing industry’s lean theory to propose a lean prebid planning model (LPPM) for construction contractors. The LPPM can significantly eliminate the main types of waste in construction projects because it effectively combines three important concepts in the manufactureing industry: transformation, workflow, and value generation. This model includes seven arrangement steps, which are described systematically to help contractors with real-world applications. A case study was implemented to demonstrate the accuracy and usefulness of the proposed model. The results showed a reduction of 9.1% in project cost and 37 days in project duration.

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