Construction Delivery Methods: A Comparative Analysis

In this guide, we’ll compare six common construction delivery methods to help you successfully execute your next project.

Construction delivery methods
Frequently Asked Questions
How does a construction delivery method impact project cost and timeline?

The chosen delivery method can significantly affect both cost and timeline. Methods like Construction Manager at Risk (CMAR) offer better cost predictability and schedule adherence by involving the construction manager early on. In contrast, the Design-Bid-Build method may have higher risks of delays and cost overruns due to its segmented approach. Faster delivery methods like Integrated Project Delivery (IPD) can shorten project duration but might require higher upfront costs for team collaboration and technology integration.

How do construction delivery methods affect risk management?

Different construction delivery methods distribute risks differently among stakeholders. In Design-Bid-Build, the owner assumes more risk since design and construction are separate contracts, which can lead to coordination issues. Conversely, Design-Build and IPD models reduce the owner’s risk by fostering collaboration between designers and builders, leading to fewer disputes and change orders. CMAR also shares risks, with the construction manager guaranteeing project costs and timelines, thus limiting the owner’s exposure to financial risks.

What are the benefits of early contractor involvement in construction projects?

Early contractor involvement allows for better pre-construction planning, cost estimation, and risk mitigation. Delivery methods like CMAR and IPD encourage contractors to contribute during the design phase, identifying potential construction issues early. This collaboration often results in value engineering, enhanced constructability, and a smoother transition to the building phase. The early input can also help to optimize the budget and timeline, ensuring that the project aligns closely with client expectations and reducing the likelihood of costly redesigns or delays.

How do different construction delivery methods affect collaboration among project teams?

Some construction delivery methods, like Design-Bid-Build, have limited collaboration since design and construction teams work independently until the construction phase begins. On the other hand, Design-Build and IPD promote a highly collaborative environment by integrating teams from the outset, enabling shared goals and streamlined decision-making. CMAR balances collaboration, offering early input from the construction manager while keeping design and construction contracts separate. Enhanced collaboration typically leads to better communication, fewer change orders, and improved project outcomes.