Steel Frames
For every 100 new homes Australia built last year, fewer than five of them involved any serious offsite manufacturing. For every 100 homes built in Sweden over the same period, more than 80 of them did. Both countries have skilled trades, mature building codes, and sophisticated builders. One of them has quietly figured out how to industrialise most of its housing output. The other is still arguing about whether to try.
That gap is now the single most interesting number in Australian construction. The country is 112,000 homes behind its own National Housing Accord target by mid 2026 (ABS Building Activity, July 2026). The Productivity Commission has found housing construction productivity is down 53% over 30 years (Productivity Commission, Housing construction productivity: Can we fix it?). And Infrastructure Australia projects the sector will be short 300,000 workers by 2027. Nobody disagrees that something has to change. The question is whether offsite manufacturing is the lever Australia is finally ready to pull.
This blog unpacks what offsite manufacturing actually covers in 2026, where it is already quietly working in Australia, what is still holding adoption back, and why prefabricated light gauge steel framing (LGS) tends to be the practical entry point for builders making the shift.
Offsite manufacturing is not one method. It is a spectrum of approaches that all share the same underlying idea: shift as much of the construction work as practical into a controlled factory environment, and leave only installation and site specific work to be done on the job site. The industry generally divides it into three families, and the differences between them matter because they imply very different capital, logistics, and project requirements.
This is the oldest and most widely used form of offsite in Australia. Individual building components, such as roof trusses, floor joists, wall frames, bathroom pods, or precast concrete elements, are made in a factory and delivered to site for installation. The site still manages structural assembly and finishes, but the individual pieces arrive sized, engineered and ready to fix.
For most residential and commercial builders in Australia, component prefabrication is already part of the standard workflow. A roof truss is prefabricated. A precast lintel is prefabricated. A bathroom pod on a hotel project is prefabricated. The question is how much further the component list is extended on any given project.
Panelised construction takes the component idea and groups it into 2D flat panels. Entire wall, floor or roof panels are assembled in a factory, often with services and insulation built in, and craned or carried into position on site. The panels still need to be joined, finished and connected to foundations and roofing, but the volume of on site labour is much lower than stick building the same wall from scratch.
Panelised prefabrication is the most widely adopted method for scaling offsite in Australia today, according to The Good Builder’s 2026 industry overview. Prefabricated light gauge steel wall and roof panels fall into this category, as do many of the timber panelised systems used by larger residential builders.
Volumetric is the most industrialised form of offsite. Entire rooms, pods, or complete dwellings are built inside a factory, including services, finishes and even fit out, then transported to site and craned into position. The site work is reduced to foundations, services connections, and final cladding or linking elements.
Queensland’s QBuild Modern Methods of Construction program and companies like Hickory, Fleetwood and Evoke Living Homes are all using some form of volumetric or near volumetric fabrication to deliver social and affordable housing at scale. The Productivity Commission notes that volumetric and advanced prefab builds can be completed in around 16 weeks, compared to up to 12 months for traditional construction.
The trade off with volumetric is capital intensity and transport. A volumetric facility is a significant investment, and the modules themselves require oversized transport approvals and a crane large enough to lift them. That is why volumetric remains a smaller share of the market than panelised, even though its productivity gains are the most dramatic.
The case for offsite does not rest on theory. Several pieces of Australian and comparative research now put concrete numbers to the productivity gain:
These numbers are not uniform across every project type. Volumetric wins fastest for repetitive social housing. Panelised wins fastest for mid rise and multi unit. Component wins fastest for roof trusses, floor joists and specialist elements. But across every category, the direction of the arrow is the same: offsite is faster, less exposed to weather and labour disruption, and cheaper on comparable scope.
Offsite construction in Australia is often talked about as a future thing. In practice it is already working at scale in several specific pockets of the market. The pockets to watch, and to learn from:
Queensland’s QBuild Modern Methods of Construction program. QBuild is Queensland’s government building authority, and its MMC program is already delivering social and affordable housing using modular techniques at scale. The programme was explicitly cited by the Productivity Commission as a working example of what offsite can do when government procurement commits to it.
Victorian school and childcare rollouts. The Victorian School Building Authority has used relocatable and modular classrooms for years, and the model has extended into permanent builds and childcare centres. State backed demand creates a steady pipeline that justifies factory investment.
NSW social housing modular pilots. NSW has backed modular pilots for social housing and specialist disability accommodation (NDIS SDA), with the state’s new Building (Approvals and Practitioners) Bill 2026 introduced in May 2026 adding a clearer regulatory framework for prefabricated homes and modular buildings.
Major developer uptake. Companies like Hickory, Fleetwood, Sekisui, Evoke Living Homes and Strongbuild have invested in offsite facilities and advanced fabrication systems. Metricon Homes, Australia’s leading residential builder for the tenth consecutive year, uses prefabricated components across its standard range (IMARC Group, Australia Housing Market report).
Multi warehouse and industrial projects. The UNSW research cited earlier was built around real multi warehouse projects in regional and outer metropolitan NSW using prefabricated LGS. This is the segment where panelised prefabrication delivers the most consistently measurable advantage.
Townhouse and multi unit developments. Repeated bays and standardised floor plates are exactly the conditions where panelised offsite construction delivers its best returns. CMC Steel Solutions has delivered steel frames to townhouse projects across Mt Waverly, Ferntree Gully, Mt Martha and others. See our guide to steel framing for townhouse and multi unit developments in Melbourne.
The common thread across these pockets is procurement stability: when government or large developers commit to a steady pipeline, factory investment is viable and offsite scales. Where procurement is fragmented into small one off projects, offsite struggles to justify the capital.
For years, one of the single biggest handbrakes on offsite construction in Australia was regulatory fragmentation. Every state had its own building certification regime, planning approvals treated prefab as the exception rather than the rule, and lenders and insurers lacked clear precedent. That is now actively changing. The milestones that matter:
February 2025, Productivity Commission paper. The Commission released Housing construction productivity: Can we fix it?, explicitly recommending the removal of barriers to the uptake of modern methods of construction, including prefab and modular housing. This moved offsite from a niche conversation into a mainstream policy brief.
Through 2025, QBuild program expansion. Queensland expanded its MMC program for social and affordable housing, operating as a demonstration case that modular can deliver at pace and scale within an Australian regulatory environment.
May 2026, NSW Building (Approvals and Practitioners) Bill 2026. NSW introduced legislation that includes a clearer regulatory framework for prefabricated homes and modular buildings (Ken Research, Australia Modular Construction Market). This is a direct response to the gap between how prefab is procured and how it is certified.
2026 onwards, ABCB national certification framework. The Australian Building Codes Board is developing a national certification framework for prefabricated and modular construction. When complete, this will give builders, certifiers and lenders a consistent reference across every state and territory. Pursuit (University of Melbourne) has described completing this framework as the obvious first step to scaling MMC (Pursuit, University of Melbourne).
Proposed, Commonwealth MMC targets. A proposal from the University of Melbourne’s Pursuit team suggests setting a 30% target for modern methods of construction in all Commonwealth funded social and affordable housing by 2028, rising to 50% by 2032. This has not been adopted as policy, but it signals the direction mainstream commentary is now heading.
Policy adjacency, Housing Accord and infrastructure pipeline. The National Housing Accord’s 1.2 million home target, combined with Infrastructure Australia’s projected 300,000 worker shortfall, is forcing the question of whether traditional methods alone can meet demand. Our deeper look at Australia’s housing shortage covers the macro pressure in more detail.
The regulatory environment is not fully resolved. Insurance, lending and local council planning still vary between jurisdictions. But the trajectory is finally clear.
If offsite is so clearly faster, cheaper and better suited to Australia’s labour reality, why is it still under 5% of total construction output? The honest answer is that several real barriers remain. These are not reasons to avoid offsite. They are the things builders, developers and investors need to plan around.
Capital intensity for volumetric facilities. A volumetric modular factory is a significant upfront investment, and the economics only work with a steady project pipeline to feed it. This is why volumetric adoption in Australia has clustered around government backed programmes and large residential developers who can commit to repeat orders.
Finance and lender attitudes. Construction finance in Australia was built around on site progress payments: concrete poured, frame erected, roof on, lockup. Prefabricated and modular projects shift the value curve forward (a factory delivers a near complete module before site work begins), which can clash with how a lender wants to stage drawdowns. This is an active area of change but it has not fully normalised.
Planning and local council variability. Even with state level reforms, individual council planning processes still treat prefab inconsistently, which creates risk and delay for developers.
Transport logistics for volumetric. Oversized module transport requires permits, route approvals, escort vehicles for large loads, and in some cases road and traffic infrastructure that constrains where modules can be delivered. Panelised and component prefab largely avoid this issue because standard trucks and cranes handle the loads.
Defects liability and insurance. Who is responsible when a prefabricated module fails in service, and whose insurance covers it? These questions have workable answers, but they still require more negotiation on a prefab project than on a conventional one.
Builder and client familiarity. The construction system grew up around stick framing. Many site managers, builders, planners and clients know how to run that process well. Switching to a prefab led workflow is a change management exercise as much as a technical one, and the industry is still working through that curve.
The common thread across these barriers is that they are solvable, and most of them are actively being solved. But none of them are solved by waiting. They are solved by builders, procurers and policy makers making the shift intentional on specific projects, learning what works, and scaling from there.
For most Melbourne and Victorian builders considering an offsite shift, prefabricated light gauge steel (LGS) framing is the lowest friction way in. It gives builders most of the productivity gains of panelised prefab without the capital outlay or logistics complexity of volumetric modular.
Six reasons LGS tends to be the practical entry point:
For builders who are considering offsite but are cautious about the full modular commitment, prefabricated LGS is the gateway. It is where most of Australia’s current panelised prefab volume already sits, and where the productivity numbers (the 69% install time cut and 39% cost saving from the UNSW Dapto study) have been most clearly demonstrated. Our deeper guide to the technical scope sits on the prefab steel frame page.
Several macro forces are converging on offsite construction over the next four years. The ones to watch:
The workforce peak hits in 2027. Infrastructure Australia projects construction workforce demand will peak at 521,000 workers by 2027, against an overall shortfall of 300,000 workers at the same date. The sector will not have the people it needs to meet traditional method demand. Methods that reduce on site labour per project will be in sharp demand through this window.
The Brisbane Olympics pipeline draws labour from housing. Olympic preparation construction is in full swing in Queensland and will peak between 2028 and 2032. Every carpenter, electrician and roofer committed to Olympic venues is one that is not available for housing. Offsite methods relieve this pressure directly.
Commonwealth MMC targets are likely to firm up. The Pursuit proposal of 30% MMC in Commonwealth funded social and affordable housing by 2028 and 50% by 2032 is a credible policy direction, especially as the Housing Accord shortfall widens. If adopted, it would create multi billion dollar demand certainty for offsite facilities.
The ABCB national certification framework comes online. Once the national framework is complete, cross state project delivery becomes significantly easier. Lenders, insurers and planners will have a consistent reference, which reduces the risk premium currently attached to prefab projects.
Market data points to steady growth. The Australia Modular Construction Market reached around USD $3,455 million in 2025, with permanent modular buildings leading the revenue mix (Ken Research). The Prefabricated Wooden Building Manufacturing sub industry alone is tracking at $699.0m in 2026 with a 7.3% CAGR over the past five years (IBISWorld).
The 5% share is likely to double or triple by 2030. Industry commentary from The Good Builder and the HIA both suggest a plausible path to prefab taking 10 to 15% of construction output by the end of the decade, with the share higher in social housing, NDIS and childcare.
Australia will not reach Sweden’s 80% share by 2030. But the sector is clearly tilting from fringe to mainstream, and builders who build offsite capability into their workflow in 2026 and 2027 will be better positioned for the pipeline that follows.
For builders weighing up whether to bring prefabricated LGS, panelised or modular into a specific upcoming project, three practical questions sort the strong candidates from the weak ones. Score each project against them.
Repeated bays, matching floor plates, standardised unit layouts and consistent openings are where offsite shines. A six unit townhouse row where each unit has the same frame geometry justifies the design and setup time of a prefabricated frame many times over. A one off bespoke home with a unique geometry still benefits, but the economic case is weaker.
If the schedule is comfortable and trades are available, the case for offsite is primarily a cost one. If the schedule is tight, trades are hard to find, or there is a fixed completion date that cannot slip (childcare opening, NDIS funding milestone, pre sold completions), the case tilts hard toward offsite because of the build time compression.
If your project depends on finding carpenters, bricklayers, ceramic tilers or roofers (the trades the HIA ranks as being in the deepest shortage), offsite reduces that exposure directly. If your project is dominated by trades that are less constrained, the benefit is smaller.
If a project scores strongly on at least two of these three questions, offsite is almost certainly worth evaluating in detail at the design stage. If it scores strongly on all three, offsite is probably the right default.
CMC Steel Solutions sits in the panelised and component prefabrication category, specialising in prefabricated LGS and structural steel framing from an in house fabrication facility in Craigieburn, Victoria. The practical offer:
For builders beginning the shift to offsite, this is the entry point that fits the existing workflow without demanding modular facility investment. For builders already running offsite programmes, it is a frame supplier with the engineering, BIM and fabrication depth to support repeat projects. The areas we service, prefab steel frame and modular building pages set out the full scope.
The headline numbers that frame the Australian offsite construction case in 2026, grouped for quick reference.
Figure | Value | Source |
|---|---|---|
Australian prefab share of total construction output | Less than 5% | Infrastructure Australia; Productivity Commission; Ken Research |
Sweden prefab share of housing | Over 80% | |
Prefabricated LGS install time saving on non load bearing walls (UNSW Dapto) | 69% (13 days to 4 days) | |
Prefabricated LGS cost saving on same scope | Around 39% | UNSW research, as above |
Traditional build time | Up to 12 months | |
Prefabricated build time | Around 16 weeks | Productivity Commission, as above |
Overall build speed improvement (prefab vs conventional) | Up to 50% faster | |
Australia Modular Construction Market, 2025 | USD $3,455 million | |
Prefabricated Wooden Building Manufacturing in Australia, 2026 | $699.0m, 7.3% CAGR 2021 to 2026 | |
Projected Australian construction workforce shortfall by 2027 | 300,000 workers | Infrastructure Australia, via MPA |
National Housing Accord target | 1.2 million homes by June 2029 | |
Current Housing Accord shortfall by mid 2026 | 112,000 homes behind required pace |
No. Modular is one specific form of offsite (volumetric, meaning whole rooms or units built in a factory). Offsite also covers component prefabrication (trusses, joists, panels) and panelised 2D construction (flat wall and roof panels). Modular is the most industrialised form, but it is not the whole category.
Less than 5% of total construction output, according to Infrastructure Australia, the Productivity Commission and industry sources such as prefabAUS. Specific sub categories, such as prefabricated wooden building manufacturing, are growing at around 7.3% CAGR and are expected to continue rising through 2030.
On comparable scope, Australian research consistently shows it is. The UNSW Dapto study found 39% cost savings for prefabricated LGS against on site steel framing. On a whole project basis, the economics depend on project complexity, repetition and programme pressure, but offsite is usually at least competitive and often meaningfully cheaper where repetition is high.
In almost every objective respect, offsite construction tends to be higher quality than on site stick building. Factory environments allow tighter tolerances, better quality control, consistent fabrication, and fewer weather exposure issues. The quality concern is often cultural rather than technical, and the regulatory framework (Reg 126, AS/NZS standards) applies to prefab the same as to traditional construction.
No. The practical entry point for most builders is sourcing panelised or component prefabrication from specialist fabricators. Prefabricated LGS from a supplier like CMC Steel Solutions in Craigieburn is used exactly this way: the builder keeps their project workflow, and the frame itself is manufactured off site.
Both work. LGS has specific advantages: it does not shrink, warp, swell or attract termites, it is non combustible, and it fits well with CNC precision roll forming. Prefab timber has its own strengths and a longer established supply chain in Australia. Our comparison of steel stud vs timber stud framing sets out the trade offs for Victoria specifically.
The Australian Building Codes Board is developing a national certification framework. NSW passed its Building (Approvals and Practitioners) Bill in May 2026, which includes a clearer framework for prefabricated and modular buildings. State level programmes in Queensland (QBuild) and Victoria are already operating at scale. Full national harmonisation is still a work in progress.
If your next project in Melbourne or wider Victoria looks like a strong offsite candidate on the three question framework above, CMC Steel Solutions can walk through how a prefabricated LGS frame fits your programme, your budget and your trade mix. Call us on 1300 285 566, email info@cmcsteelsolutions.com.au, or get in touch online, and we will take you through the specifics for your project.