Steel Floor Joist
Experience superior strength, long-span performance, and absolute dimensional stability with precision‑engineered steel floor joists. Lightweight, termite-proof, and designed for fast installation, our steel flooring systems deliver a solid, reliable foundation for residential, commercial, and industrial projects.
Let’s Start Work
Together
Please feel free to contact us. We will get back to you with 1-2 business days. Or just call us now.
Steel Floor Joists: The Future of Strong, Reliable & Efficient Flooring
High‑Performance Steel Flooring Systems for Modern Australian Construction
Build smarter with precision‑engineered steel floor joists designed for superior structural integrity, long‑span performance, and long-term durability. Whether you’re constructing a new home, commercial fit‑out, warehouse mezzanine, or multi‑storey project, our TRUECORE® steel floor joist systems deliver the strength, stability, and confidence you need.
🏗️ Why Choose Steel Floor Joists for Your Project?
1. Outstanding Load‑Bearing Strength
Our steel floor joist systems are engineered to support heavier loads over longer spans—without sagging, bending, or degrading over time. Ideal for:
- Multi‑storey residential builds
- Commercial premises & office floors
- Industrial warehouses
- Mezzanine platforms & elevated structures
- Sloping sites and suspended floors
2. Lightweight Construction, Heavyweight Performance
Steel floor joists weigh up to 60% less than equivalent timber, offering:
- Faster, safer handling
- Reduced foundation pressure
- Cheaper transport & fewer deliveries
- Minimal offcuts & waste
3. Guaranteed Dimensional Stability
Steel flooring systems remain perfectly straight for decades. They do NOT: ❌ Warp
❌ Twist
❌ Shrink or expand
❌ Absorb moisture
❌ Attract termites
The result? Perfectly level floors that stay level.
4. Longer Spans, More Design Freedom
Our steel floor joists can achieve clear spans up to 8m, reducing the need for:
- Intermediate bearers
- Internal load‑bearing walls
- Bulky beams
This means:
- Open‑plan living areas
- Flexible commercial layouts
- Cost‑efficient basement and parking spaces
5. Fast, Precise, Hassle‑Free Installation
Every steel floor joist is CAD-designed and manufactured to exacting tolerances, ensuring:
- Millimetre-perfect accuracy
- Pre-punched service holes
- Lightweight components
- Clear installation guidance
Compatible with all standard flooring system
🔧 Steel Floor Joist System Options
• Residential Steel Floor Systems
Engineered for new homes, extensions, renovations, and sloping sites. Ideal for ground floors, first floors, wet areas, and attic conversions, providing strong, stable, termite-proof flooring solutions.
• Commercial & Industrial Flooring Systems
Designed for high-load and high-traffic applications such as office buildings, retail centres, warehouses, factories, and mezzanine floors. Offers long spans, rapid installation, and exceptional structural reliability.
• Specialised & Outdoor Steel Flooring Solutions
Perfect for decks, balconies, carports, garages, roof access platforms, and pool surrounds. Built to withstand moisture, weather exposure, and demanding site conditions while maintaining long-term stability.
Our Solutions & Benefits
For enhanced strength, durability, and robustness, all our steel floor joists are double screwed and have undergone university testing, providing you with complete confidence. Through innovative floor installation techniques that utilize the inherent strength of steel joists, we can help minimize the need for heavy structural steel.
Employing steel framing floor joists allows for greater design flexibility. Their high strength-to-weight ratio reduces the necessity for internal load-bearing walls and columns. This results in improved flooring layout and a precise finish that is often difficult to achieve with other materials.
Our steel floor joists deliver exceptional strength, long-span capability, and complete resistance to termites, warping, and moisture. This ensures solid, stable floors that perform flawlessly for 50+ years with minimal maintenance.
Precision‑engineered with pre‑punched service holes and lightweight components, our steel floor joist systems install 30–40% faster than traditional timber. This reduces labour hours, eliminates on-site errors, and speeds up project timelines.
Whether residential, commercial, industrial, or specialty structures, we provide fully custom-engineered steel flooring systems tailored to span requirements, load demands, and architectural designs—delivering optimal performance for any build.
FAQ Steel Floor Joist
To find fabricators and suppliers of frames made from TRUECORE® steel near you, use our supplier locator. If you need further assistance or have trouble finding a supplier, please contact us.
We've put together a suggested tool kit list specifically for carpenters and frame installers working with frames made from TRUECORE® steel. Download our handy list to ensure you have everything you need to get the job done efficiently.
For guidance on the installation and detailing techniques for steel framing, we recommend referring to Technical Bulletin TB34: Steel Building Frames. This bulletin has been specifically written to assist designers and builders in achieving best practice outcomes when working with steel frames made from TRUECORE® steel. It provides general advice for common construction types and was updated to reflect the substantial changes in the National Construction Code (NCC) 2022.
Depending on profile depth, spans range from 3m to 8m, offering excellent design flexibility.
Yes — steel is fast becoming the preferred choice for two‑storey homes, sloping sites, and premium residential builds.
Steel may have a slightly higher upfront cost, but total project costs are usually lower due to faster install speed and zero maintenance.
Absolutely — compatible with particleboard, plywood, concrete sheet, and ALPHAFLOOR®.
No. Standard building tools are suitable — plus pre‑punched holes eliminate most drilling.
When installed correctly with appropriate insulation, steel joist floors are as quiet or quieter than timber systems.
Yes — steel is non‑combustible and ideal for BAL-rated areas.
TRUECORE® steel floor joists offer a 50+ year design life with no structural degradation.
🏅 Fully Compliant With Australian Standards
Meeting All Industry Standards
We manufacture our Granny flat framing kits using steel that meets all Australian industry and construction standards, while ensuring that each batten, floor joist, wall panel and roof truss is engineered to the highest standards. We never compromise on the safety of our framing systems and all our steel is backed by warranties for eligible applicants.
We manufacture to the following Australian Standards:
- AS/NZS 4600: 2005 Cold-formed Steel Structures
- AS 4100: 2020 Steel Structures & Designs
- AS 3623: 1993 Domestic Metal Framing
- TRUECORE® steel complies with AS 1397:2011
- NH100: NASH Standard Residential and Low-Rise Steel Framing Part 1: Design Criteria 2005
- AS 4055: 2006 Wind Loads for Housing
- ABCB Protocol for Structural Software Building Code of Australia (BCA) – 2012
Contact Us
Please contact our team prior to ordering should you have any concerns.
Contact us today on
(02) 9681 5050
to discuss your project.
Let us help you bring your vision to life. Contact us today for a free quote:
www.steelframestrusses.net.au/contact-us
Here are some additional resources that you may find helpful:
www.steelframestrusses.net.au/contact-us
For more information and
Request for Free Quote
for your next steel frames and Trusses projects
Shop Products
-
Select options This product has multiple variants. The options may be chosen on the product page -
Select options This product has multiple variants. The options may be chosen on the product pageALPHAFLOOR® Solid Concrete Flooring
Original price was: $152.00.$132.00Current price is: $132.00. -
Select options This product has multiple variants. The options may be chosen on the product pageGALINTEL® CAVITY T BAR
Price range: $45.00 through $55.00 -
Select options This product has multiple variants. The options may be chosen on the product pageGalvanised Hoop Iron Punched Strap Roll 30mm x 0.8mm x 15m, 30m
Price range: $28.20 through $89.20 -
Select options This product has multiple variants. The options may be chosen on the product pageGalvanised Parallel Flange Channel & Flange Plate (PFC + FL))
Price range: $436.99 through $450.55 -
Select options This product has multiple variants. The options may be chosen on the product pageGalvanised Solid Base Steel Angle LINTEL (Double Ribbed) -150mm x 100mm x 6mm
Price range: $65.50 through $130.50 -
Select options This product has multiple variants. The options may be chosen on the product page
Galvanised Steel (Double Ribbed) Solid Base Angle – 100mm x 100mm x 6mm
Price range: $23.47 through $74.30 -
Select options This product has multiple variants. The options may be chosen on the product pageGalvanised Steel / Traditional T-Bar | 250 x 10mm (V) x 200 x 10mm (H)
Price range: $1,020.50 through $1,355.55 -
Select options This product has multiple variants. The options may be chosen on the product pageGeneric Product C & Z Purlins
Price range: $15.00 through $70.00 -
Select options This product has multiple variants. The options may be chosen on the product pageH-Beam Retaining Wall Posts 100UC14.8
Price range: $62.03 through $186.09
Get In Touch
H-Beam Retaining Wall Posts 100UC14.8
Price range: $62.03 through $186.09
Tapered Flange Retaining Wall Posts Beam & Channel TFC
Price range: $39.51 through $118.53Galvanised Steel (Double Ribbed) Solid Base Angle – 100mm x 100mm x 6mm
Price range: $23.47 through $74.30Galvanised Solid Base Steel Angle LINTEL (Double Ribbed) -150mm x 100mm x 6mm
Price range: $65.50 through $130.50ALPHAFLOOR® Solid Concrete Flooring
Original price was: $152.00.$132.00Current price is: $132.00.Galvanised Hoop Iron Punched Strap Roll 30mm x 0.8mm x 15m, 30m
Price range: $28.20 through $89.20
STRUCTAflor 19mm Yellow Tongue Flooring Particleboard (3600 x 800mm)
Price range: $24.60 through $59.90Our Latest Projects
These can include builds: New homes, Extensions, Renovations, Duplexes, Townhouses, Low and mid-rise apartments,
What's Going On In Our Blog?
What is the problem with steel framed homes in Australia?
What is the problem with steel framed homes in Australia?
ResponsibleSteel™ site certification
ResponsibleSteel™ site certification
School and childcare centre projects
School and childcare centre projects
Aged care and retirement living projects
Aged care and retirement living projects
The rise of light gauge steel framing in top-floor construction
The rise of light gauge steel framing in top-floor construction
Lightweight building facades
Lightweight building facades
Prefabricated Steel Frames & Trusses are indeed an innovative solution
Prefabricated Steel Frames & Trusses are indeed an innovative solution
Timber vs Steel frame Australia
Timber vs Steel frame Australia
Quick Build is Your Kit Homes and Modular Homes Supplier in Sydney Canberra & Melbourne.
Visit: https://www.QuickBuild.au Email: [email protected]
