Steel Frames
TrueCore is one of the most recognised steel framing products in the Australian residential construction market. Manufactured by BlueScope Steel from ZINCALUME steel substrate, TrueCore sections are used by frame fabricators across Australia to produce wall frames, floor systems, and roof trusses for new homes and commercial buildings.
If you are researching TrueCore for an upcoming project, cost is almost certainly one of your first questions. This guide covers what TrueCore steel frames cost in Australia in 2026, what drives price variation, what is and is not included in a typical supply quotation, and how to get an accurate figure for your specific project.
TrueCore is BlueScope Steel’s branded cold-formed steel framing product. It is manufactured from ZINCALUME steel, a zinc-aluminium alloy-coated steel substrate that provides enhanced corrosion resistance compared to standard galvanised steel.
TrueCore sections are roll-formed into C-section studs, U-section tracks, noggings, and other standard framing members. The product is supplied to certified frame fabricators who cut, assemble, and engineer frame packages to the structural requirements of specific building projects.
Key characteristics of TrueCore steel:
It is important to note that you do not buy TrueCore frames directly from BlueScope Steel. BlueScope supplies the raw coil steel to certified fabricators, who then manufacture your specific frame package to your project drawings. The cost of a TrueCore frame is therefore the cost charged by the fabricator for the supply of the engineered frame package, not a price from BlueScope directly.
The following are supply-only cost ranges for TrueCore steel frame packages in Australia for 2025 and 2026. All figures are indicative only and should not be used as a substitute for a project-specific quotation.
Floor Area | Indicative Supply Cost |
|---|---|
150 to 200 m² | $8,000 to $14,000 |
200 to 280 m² | $13,000 to $22,000 |
280 to 350 m² | $20,000 to $32,000 |
*Source: Indicative supply-only pricing based on CMC Steel Solutions project data for Melbourne and regional Victoria, 2025 to 2026. Figures are for TrueCore wall frame supply only and exclude installation labour, crane hire, floor frame, roof trusses, and engineering fees. Steel commodity prices fluctuate and quotations are project-specific. Contact CMC Steel Solutions for an obligation-free quote based on your plans.* Simple rectangular plans will be at the lower end; plans with multiple offset rooms, large feature walls, and multiple corner returns will be at the upper end.
Floor Area | Indicative Supply Cost |
|---|---|
250 to 350 m² | $22,000 to $38,000 |
350 to 450 m² | $34,000 to $55,000 |
Source: Indicative supply-only pricing based on CMC Steel Solutions project data for Melbourne and regional Victoria, 2025 to 2026. Figures are for TrueCore wall frame supply only and exclude installation labour, crane hire, floor frame, roof trusses, and engineering fees. Contact CMC Steel Solutions for a project-specific quotation.
Where a TrueCore steel floor frame is specified in addition to wall frames, add approximately:
Roof truss pricing is generally quoted separately from wall frame pricing. For residential steel roof trusses, see our Residential Roof Trusses Melbourne Guide.
A complete single-storey steel frame package for a standard Australian home including wall frames, floor frame, and roof trusses typically falls in the range of $20,000 to $55,000, with the wide range reflecting the significant variation in home size, roof complexity, ceiling heights, and floor system requirements.
Understanding what goes into the price helps you evaluate quotations and have an informed conversation with your fabricator.
The most direct driver of frame cost is the quantity of steel in the frame package. Larger homes, higher ceilings, more internal walls, and heavier gauge sections all increase the steel volume and therefore the material cost.
A simple rectangular floor plan with standard wall spacings and minimal internal walls is the most economical to fabricate. Each additional corner return, step in the footprint, angled wall, change in floor level, or non-standard room dimension adds fabrication time and material offcuts. Floor plan complexity is one of the biggest differentiators between the low and high ends of the indicative cost ranges.
Standard ceiling height in Australian residential construction has moved from 2.4 m to 2.7 m as the new baseline, with 3.0 m and higher becoming increasingly common in premium homes and open-plan living areas. Higher ceilings mean taller studs, which may require heavier gauge sections to maintain structural adequacy, adding both material cost and engineering time.
Heavier gauge studs cost more than lighter gauge sections. The gauge required for any given wall depends on the wall height, load type, wind classification, and engineering design. Walls in higher wind classification zones or carrying heavy loads require heavier sections, which increases cost.
Melbourne sites classified at N3 or above, such as coastal bayside suburbs, elevated Dandenong Ranges properties, and exposed outer suburban lots, require heavier connection details and in some cases heavier gauge framing sections compared to standard N2 metropolitan sites. Confirm your site’s wind classification with your building surveyor before requesting quotations, as this will affect the frame engineering and cost.
A certified TrueCore fabricator includes structural engineering certification as part of the frame supply package. This engineering cost is typically incorporated into the frame price. For unusual structural configurations, complex roof geometries, or buildings above single-storey, the engineering effort and therefore the embedded engineering cost in the quote will be higher.
Frame packages are manufactured in factory locations and delivered to site by truck. Delivery costs depend on distance from the fabrication facility to the site, site access constraints, and whether unloading assistance is required. For Melbourne metropolitan sites, delivery is usually included within or added as a flat rate to the frame price. Regional Victoria sites may attract a delivery surcharge.
When requesting a quotation for a TrueCore frame package, confirm what is and is not included. A standard supply-only quotation from a certified fabricator typically includes:
A standard supply-only quotation typically does not include:
Always confirm the scope of what is included before accepting a quotation.
The most common cost comparison question is whether TrueCore steel is more or less expensive than a comparable timber frame.
On a supply-only basis, TrueCore steel frames are typically 10 to 25 percent more expensive than equivalent pine timber frames, depending on current steel and timber commodity prices.
However, on a total installed cost and lifecycle cost basis, the picture shifts considerably:
For volume builders constructing multiple homes per year, the total cost advantage of steel framing is typically more evident than for single-home builds.
To receive an accurate quotation for your project, you will need to provide your fabricator with:
CMC Steel Solutions is a certified supplier of TrueCore steel frame packages across Melbourne and regional Victoria. Our engineering team designs from your architectural plans, provides full structural certification, and delivers a complete frame package ready to install.
Contact our team to request an obligation-free quotation for your project.
Q. Why does TrueCore cost more than some other steel frame products?
TrueCore is manufactured from ZINCALUME AZ150 substrate, which provides a higher-specification corrosion protection coating than standard galvanised steel used in lower-cost competing products. The BlueScope quality management system and product certification provide an additional level of assurance over generic imported sections. For builders and developers who need the documentation trail for insurance purposes, extended structural warranties, or premium project specifications, the TrueCore certification package has real value.
Q. Can I buy TrueCore sections directly from BlueScope?
No. BlueScope supplies TrueCore coil steel to certified fabricators, not to builders or developers directly. To obtain a TrueCore frame for your project, you engage a certified TrueCore fabricator such as CMC Steel Solutions.
Q. Is TrueCore only used for residential framing?
No. TrueCore sections are used in both residential and low-rise commercial framing applications. They are suitable for wall frames, floor joists, and roof trusses across a range of building types up to approximately four storeys.
Q. Does using TrueCore affect my project’s NatHERS energy rating?
TrueCore steel sections, like all steel framing products, conduct heat more readily than timber, which can create thermal bridging through wall frames. Your NatHERS assessor will account for the frame type in the energy rating calculation and specify the insulation system required to achieve the minimum star rating. Correctly insulated TrueCore frame homes achieve NatHERS ratings equivalent to or better than timber frame homes.
Q. How long does a TrueCore steel frame last?
A TrueCore steel frame manufactured from ZINCALUME AZ150 substrate in a standard residential environment has a corrosion resistance design life exceeding 50 years under normal residential conditions. The frame does not require any maintenance, repainting, or retreatment over this period under normal internal conditions.
Q. What is the difference between TrueCore and TRUECORE?
TrueCore and TRUECORE refer to the same product. The all-caps version is the registered trademark styling used by BlueScope Steel in its brand communications. Both terms refer to the same ZINCALUME-based cold-formed steel framing product.
Q. Can I compare TrueCore quotations between different fabricators?
Yes. All certified TrueCore fabricators work from the same BlueScope substrate, so the underlying steel product is equivalent between fabricators. Price differences between quotations will reflect differences in fabrication efficiency, delivery logistics, engineering setup costs, and local market conditions. Ensure you are comparing like-for-like scope when evaluating quotations.
Q. What documentation does CMC Steel Solutions provide with a TrueCore frame?
CMC Steel Solutions provides structural engineering certification to AS/NZS 4600 and the NASH Standard, frame layout drawings, installation guides, and a material specification confirming TrueCore product compliance. This documentation package is suitable for building permit submission and building inspection sign-offs.
Q. Does the cost of TrueCore frames change throughout the year?
Steel commodity prices fluctuate with global steel markets, and these fluctuations flow through to frame fabrication costs over time. Frame quotations are typically valid for 30 to 60 days from the date of issue. For projects with longer lead times, discuss price validity with your fabricator at the time of quotation.
Are you looking for steel framing solutions? We at CMC Steel Solutions offer wide range of products for construction projects.
Connect with our team at 1300 285 566 or email us your doubts on info@cmcsteelsolutions.com.au for better response.
