National Infrastructure Plan: Materials, supply chains, distributors - the invisible backbone of good infrastructure

Wednesday, 18 February 2026

Julien Leys is chief executive of the Building Industry Federation of New Zealand.

OPINION: New Zealand’s first National Infrastructure Plan released this week delivers a sobering message: we spend more than most developed countries on infrastructure, but we don’t usually get value for money.

New Zealand has nearly $275 billion worth of infrastructure projects in the pipeline. We face a long list of critical projects from ageing hospitals, leaky water pipes, congested roads and a growing electricity system that must support decarbonisation. At the same time, public debt pressures are mounting, and our population is rapidly ageing. There will be fewer working-age taxpayers to fund more healthcare and more renewals.

The political debate led by Minister for Infrastructure Chris Bishop has quickly and predictably settled into a familiar call to action: less for roads, more for hospitals. Hard trade-offs. Tough fiscal reality.

But there’s another part of the infrastructure story that hasn’t had nearly enough attention so far – this is New Zealand’s building materials and products supply chain.

If New Zealand is serious about delivering better infrastructure at a price we can afford, manufacturers, importers, merchants and distributors will play a critical role. Not as bystanders reacting to demand, but as active partners in lifting performance.

One of the most important shifts in the Plan is its emphasis on maintenance and renewals. Up to 60 cents in every dollar of capital spending over the next 30 years will go toward fixing and replacing what we already have, not building flashy new megaprojects.

That’s a quiet revolution.

For decades, infrastructure politics has favoured ribbon-cutting moments. But the reality is that much of what was built after World War II is now wearing out. Hospitals need seismic upgrades. Water networks need replacing. Roads need strengthening against heavier vehicles and more extreme weather.

For the supply chain, this should mean more predictable, steady demand — provided government sticks to disciplined, long-term planning.

Renewals-heavy programmes favour repeatable products, standardised components and efficient logistics. They reward manufacturers who can deliver consistent quality at scale. They benefit distributors who can align stockholding to regional maintenance schedules rather than chase one-off mega builds.

If maintenance truly comes first, the supply chain can help stabilise infrastructure delivery rather than ride the boom-bust cycles that have plagued the sector.

New Zealand is notorious for duplication and complexity. We have dozens of councils, multiple infrastructure owners and countless bespoke specifications. That fragmentation drives up costs, and we need to get real about what we actually need.

Manufacturers and merchants can help by pushing for greater standardisation across the built environment. Why should different regions require slightly different versions of essentially the same pipe, fitting or building component? Why should hospitals and schools reinvent room layouts rather than adopt modular, repeatable designs?

Standardisation significantly reduces procurement costs, improves buying power and shortens lead in times. It makes bulk purchasing at scale viable and cost effective. It lowers the risk of project delays caused by specialist components.

In a country of just over five million people, scale matters. Managing how to scale up production and processes to drive down cost may be our single biggest barrier to success as a small nation with an aging population. We simply don’t have the luxury of endless variation.

New Zealand is geographically isolated and heavily reliant on imports for many building materials. The pandemic and global shipping disruptions were a huge wake-up call. So too are the increasing risks from natural weather events such as the destructive rain and winds we are seeing across the motu in February.

While we can’t manufacture everything domestically, there is a strong case for targeted local capability in critical, high-volume product categories. For example, those heavily used in renewals, such as pipes, precast elements and structural components.

Strategic local manufacturing doesn’t automatically mean protectionism. Rather it means resilience. It also reduces exposure to global price spikes, shipping delays and currency swings.

But manufacturers will only invest in plant upgrades, automation and AI if they have confidence in a stable pipeline that yields certainty of work and revenue. That’s where government must provide clearer, multi-year funding signals and most importantly stick to them in a MMP political system that see-saws left or right every three years.

The uncomfortable truth is that New Zealand often pays far too much for infrastructure relative to what we get. Geography plays a role, but so does productivity.

The supply chain can help close the efficiency gap through smarter construction methods. Offsite manufacturing, prefabrication and modular systems can reduce on-site labour, minimise weather delays and improve quality control.

Hospitals and schools which are both likely to see investment pressure in coming decades are particularly suited to modular approaches. Repeatable room configurations, pre-assembled service modules and standardised building components can compress build times and reduce lifecycle costs.

The supply chain should position itself not simply as a materials provider, but as a systems partner offering productivity gains.

Infrastructure is not just about upfront capital cost. It’s about durability, resilience and long-term performance.

Products that reduce water leakage, improve energy efficiency or extend asset life directly support the Plan’s focus on better asset management. The central message of the Plan is that New Zealand must get a lot better at looking after what we already have and so a regular maintenance programme is paramount. Suppliers who can demonstrate whole-of-life savings, not just competitive unit pricing, will be aligned with where policy is heading.

This matters because infrastructure ultimately shows up in rates, taxes and user charges. If material cost escalation outpaces productivity, all households in New Zealand feel it.

For too long, infrastructure delivery has been treated as a linear transaction: government funds, contractors build, suppliers deliver the building materials.

That model is no longer fit for purpose for New Zealand’s infrastructure future.

The Plan calls for better data, better coordination and stronger oversight. The supply chain must be part of that system view. Early engagement in project design can identify cost-effective product and materials choices. Transparent data on lead times and price drivers can reduce uncertainty. Collaborative procurement models can smooth price volatility.

New Zealand cannot afford a fragmented, reactive infrastructure ecosystem.

We are entering a period where fiscal constraints will be the norm, demographic pressures are baked in and climate risks will only intensify. Simply spending more without a strategic overlay is not an option.

If we want better hospitals, more resilient water systems and transport networks that perform in adverse events, we need disciplined planning, multi-party collaboration and a longer-term outlook as well as a supply chain that embraces its role in delivering value.

Infrastructure might be about roads and pipes and buildings. But behind every asset is a network of building products and materials manufacturers, importers, merchants and distributors making it all possible.

In the tighter, more demanding era ahead, their efficiency and innovation could make the difference between infrastructure ambition and infrastructure affordability.