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Materials & construction
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| Illustrative stock image — not a depiction of any specific builder's product. |
Two different questions sit behind the phrase "how it's built". The first is material — whether the structure is steel, timber, engineered panels or concrete. The second is method — whether the building arrives as complete three-dimensional modules, as flat panels assembled on site, or as a kit of components. The two are often confused, and a builder describing a "steel modular home" is answering both at once.
The distinction matters to a buyer because the two questions carry different consequences. Material affects durability, weight, thermal behaviour, fire and pest exposure, and how the home is likely to be insured and maintained. Method affects transport limits, design flexibility, how much work happens on your block, and where the risk of delay sits.
Guides in this category describe each of the common materials and systems used in Australian off-site construction, what published sources say about their characteristics, and what to ask a builder about them. Where reliable cost figures exist they are attributed and dated; where they do not, that is stated rather than estimated.
Key considerations
- Material and construction method are separate questions — ask both
- Structural material affects insurance, maintenance and pest exposure
- Factory completion percentage varies widely between builders using the same material
- Independent cost comparisons between materials are scarce; most published figures are commercial
Guides in this category
- Foundations for modular and prefab homes 27 Oct 2026
- Electrical work in factory-built homes 22 Oct 2026
- Plumbing in factory-built homes 22 Oct 2026
- Bathroom pods and factory-built bathrooms 13 Oct 2026
- Gardens and outdoor space with a modular home 13 Oct 2026
- Interior finishes in modular homes 13 Oct 2026
- Kitchens in modular homes 13 Oct 2026
- Living in a modular home 13 Oct 2026
- Border Force finds asbestos in an imported prefabricated building 12 Oct 2026
- Building on flood-prone land — what the rules require of a prefab home 9 Sep 2026
- Knockdown rebuild or modular — what changes when there's a house already there 9 Sep 2026
- The Livable Housing Design Standard and factory-built homes 9 Sep 2026
- Building over a sewer or easement — the approval nobody budgets for 4 Sep 2026
- Site classification — the soil test that sets your slab cost 4 Sep 2026
- The 7-star NatHERS rule and what it means for a modular or prefab home 31 Aug 2026
- Energy efficiency and sustainability in modular homes 31 Jul 2026
- Off-grid power, water and wastewater for tiny homes 31 Jul 2026
- Sustainability certifications and environmental claims in prefab housing 31 Jul 2026
- Container home or modular home — what's the real difference? 26 Jul 2026
- Major material suppliers behind Australian off-site homes 25 Jul 2026
- Panelised (flat-pack) homes 25 Jul 2026
- Bushfire attack levels and prefab homes 24 Jul 2026
- Imported prefab kits — what compliance requires 24 Jul 2026
- Precast concrete in Australian homes 24 Jul 2026
- NDIS Specialist Disability Accommodation and prefab 24 Jul 2026
- Connecting water, power and wastewater 24 Jul 2026
- Shipping container conversions as dwellings 24 Jul 2026
- Steel framing in prefab and modular homes 24 Jul 2026
- Structural insulated panels (SIPs) in Australian homes 24 Jul 2026
- Timber framing and engineered wood in prefab homes 24 Jul 2026
- What prefab and modular homes are built from 24 Jul 2026
- Cyclonic and high-wind regions 24 Jul 2026
- ABCB opens consultation on a national certification scheme for prefab manufacturers 15 Jul 2026
Related categories
- Modular homes — Homes built as three-dimensional modules in a factory, transported and assembled on site as permanent dwellings.
- Prefabricated homes — Walls, floors and roof elements manufactured flat in a factory, then assembled on site.
- Granny flats — Self-contained secondary dwellings on the same lot as a principal home.
- Tiny homes — Compact dwellings, fixed or on wheels, typically 15–55 m².
- Transportable homes — Factory-built homes engineered so they can be relocated after installation.
- Costs & planning — Prices, site works, approvals and the pathways that apply in each state.
- Buying guides — Comparing builders, reading contracts, and what to check before signing.
- Finance — How lenders treat off-site construction and how progress payments differ.
- Rural builds — Remote sites, access constraints and why off-site construction suits difficult blocks.
- Industry trends — Policy, funding, market size and how Australia compares internationally.
- Updates — Regulatory, policy and market changes affecting prefabricated and modular housing in Australia, and who they bear on.
- Tools — Interactive checklists and lookup tools for planning a modular, prefab or secondary dwelling build.
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