Comparative Analysis of Design-Build and Design-Bid-Build Project Delivery Methods Through Cost, Schedule and Quality Performance for Warehousing and Storage Facilities

Storage facilities are essential for e-commerce operations, providing inventory, distribution, and delivery space. As per the Bureau of Labor Statistics, the number of warehousing and storage businesses in the United States increased from 15,152 in 2010 to 21,287 in 2024, showing continuous growth over the decade. Given the recent surge, there is a need to understand the performance of these facilities better. This study aims to contrast the measure of quantitative performance of design-build (DB) versus traditional design-bid-build (DBB) project delivery methods (PDM) based on cost, schedule, and quality metrics for storage facilities. This research conducted a literature review to document cost, schedule, and quality metrics and compare DBB and DB in terms of project performance. T-test and ANOVA were conducted to compare the significant difference between the means to compare the performance between delivery methods and project outcomes across these critical areas. With these insights, owners can make informed strategic decisions about selecting the optimal PDM for future storage facility projects based on their unique quality and scope management objectives.