Why prefabrication is becoming essential for data centre delivery

Rising demand for AI, cloud services, and high-density compute is forcing data centre developers to deliver capacity faster, and with greater certainty. Design for Manufacture and Assembly (DfMA) shifts key construction activities into control factory environments, creating a more repeatable approach to delivery across data centre campuses. Prefabrication is becoming essential because it improves delivery speed, reduces risk, and increases construction certainty.  

Growth in the data centre sector is now a delivery challenge, not just a demand one. IT capacity across individual data centres and wider campuses is increasing, largely driven by cloud and AI. At the same time, the industry must manage a skilled labour shortage and supply chain constraints while trying to bring sites online faster.  

This has created a renewed focus on design for manufacture and assembly (DfMA) to address that challenge. This is a method that designs buildings for off-site manufacturing and rapid on-site assembly.  

DfMA brings together design, manufacture, prefabrication, logistics, installation and commissioning. It is not new to construction, nor to data centres. However, the standard and repeatable nature of data centre design makes the sector well suited to this delivery model.  

Take, for example, a 6MW data hall. It might be served by four identical 2MW IT LV and UPS line-ups in a ‘four to make three’ distributed redundant system – this means if one line-up failed, there would still be sufficient power available for the data hall. When that level of repeatability is considered across multiple data halls, multiple buildings, and multiple campuses, standardisation and prefabrication become a logical solution. 

Why is DfMA commercially viable for data centres?

For hyperscale and colocation providers, the value of DfMA is the certainty it brings. 

Many data centre projects now involve significant pre-leasing or early capacity commitments. These are often made against fixed ready-for-service dates, and there are strict penalties if these are missed. As a result, reducing programme risk through DfMA is important because it protects delivery certainty.  

By moving parts of the construction process into a factory assembly line, elements of the build can be decoupled from the main site works. Factory slots can then be sequenced for just-in-time delivery, installation, and fit-out, helping improve programme certainty.  

This is particularly valuable for remote construction sites, where large and complex MEP installations may otherwise require specialist labour to be brought in temporarily.  

Additionally, factory environments allow for tighter control over the workmanship. That can support consistently high-quality installation and reduce waste and rework on the project. There can also be embodied carbon benefits, although these are not automatic. The outcome depends on material selection, transport distances, packaging, module design, and whether standardised components can be reused elsewhere in the portfolio, all of which affect the commercial case.  

Where prefabrication can have the greatest impact in data centres

Data centre operators are increasingly reviewing the full build sequence to understand where prefabrication can deliver the greatest benefit. Some elements are already well established. Stand-alone modules such as LV electrical plant rooms, mechanical pump rooms, and containerised generators can be manufactured, tested and commissioned off-site before being transported. These are now relatively familiar across the industry.  

However, there are other less-explored areas where prefabrication can have benefits. Corridor service modules can significantly increase construction speed by optimising sequencing and the number of trades involved. Skidded cooling gallery arrangements and modular hot aisle containment systems also lend themselves well to prefabrication because they follow standard, repeatable configurations.  

The strongest results are when these opportunities are considered early in the design process. Successful DfMA depends on clearly defining:  

• Module interfaces  
• Transport constraints
• Lifting & positioning strategies
• Testing requirements
• Maintenance & replacement access

If these issues are left until later, the benefits can be reduced due to the need to redesign or change logistics. As a result, technical coordination is vital. Designers, contractors, manufacturers and equipment vendors need to work closely together to ensure the solutions are optimised for operation.  

Moving towards a configurable kit of parts

With the data centre sector maturing, the next stage of delivery will require greater standardisation of modular design interfaces across the full delivery chain.  

The goal is not a one-size-fits-all data centre. Site conditions, tenant requirements and local regulations will always demand flexibility. However, there is an opportunity to create a configurable kit of parts: repeatable where the industry benefits from consistency, and adaptable where individual projects require it.  

If achieved, the industry would move closer to a ‘plug-and-play’ delivery model and benefit from the speed, quality, and certainty that come with it, without sacrificing resilience or maintainability.

For hyperscalers and colocation providers, DfMA is therefore more than a construction method. It is an important part of how the sector is responding to the rising demand and the need for more predictable delivery. 

To learn more about how designing for manufacture and assembly can support your next data centre project, speak to a member of our data centre team.