Steel Roof Trusses

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Building WA Stronger

Building a strong structure starts with the reliability of the parts. That’s why Techsteel makes quality our promise. Our team manufactures steel roof trusses right here in WA, using only Australian TRUECORE® steel for the highest quality and superior strength. When working with the skeleton support for a future building, roof trusses need to be strong, reliable and built to last.

Combine the skills of a team who earned their stripes through years of on-the-job experience with quality materials, and you’re working with one of WA’s experienced steel roof truss manufacturers.

Our focus on efficiency in each step keeps your project on time. With a streamlined and agile manufacturing process, your project stays on track, helping you meet your budget and project milestones. Whether you need roof trusses in Perth for a large-scale commercial complex, warehouse facility or other industrial structure, our team works side by side with you to get the work done on your timeline.

Looking for a Different Size?

Every project has different structural requirements, which is why we manufacture steel roof trusses to suit your specific plans and specifications. Whether you need different roof truss sizes, spans or configurations, our team can manufacture a solution to suit your project. Speak with Techsteel about the roof truss design and specifications you need for your build.

Why Choose Steel Roof Trusses

Choosing high-tensile light-gauge steel framing over traditional roof structures offers significant structural and long-term performance benefits across residential and commercial builds.

Strength and long spans

Steel possesses an exceptional strength-to-weight ratio, allowing engineers to design large clear spans without needing thick, heavy sections or intermediate internal support columns.

Dimensional stability

Steel won't warp, twist, shrink, or rot. Your roof line arrives straight and stays straight, ensuring ceiling plasterboard lays flat without cracking over time.

Termite and pest resistant

Steel is completely unappetising to white ants and timber-boring insects. In WA’s high-risk termite zones, steel roof trusses protect your property without ongoing chemical treatments.

Non-combustible framing

Steel does not catch fire, burn, or add fuel to a building fire load, offering vital fire protection in Australian suburban and bushfire-prone areas.

Low maintenance durability

The protective metallic coating on TRUECORE® steel resists rust and atmospheric corrosion, ensuring the framing maintains its structural integrity over a long service life.

Fully recyclable

Steel is 100% recyclable at the end of a building's life cycle, making it an environmentally sustainable choice for modern construction.

Steel Roof Trusses for All Build Types

Including Homes, Sheds & Commercial Builds

Techsteel supplies light-gauge steel roof framing across the full spectrum of Western Australia’s building industry, offering both supply-only packages for trade erectors and owner-builders as well as complete supply-and-install services.

Commercial & industrial builds

Long-span truss systems engineered for childcare facilities, office complexes, agricultural structures, and commercial warehouses. For projects requiring a complete structural frame, combine your roof framing with our custom light-gauge steel wall frames or explore a complete full structure kit.

New homes & developments

Custom residential roof trusses engineered for volume builders, custom home residential contractors, and multi-unit developments across Perth.

Extensions & granny flats

Precision-manufactured framing designed for tight residential additions where clean, straight lines make ceiling linings easy to align—including projects managed by DIY owner-builders.

Sheds, workshops & carports

Heavy-duty, clear-span trusses designed for backyard workshops, custom industrial garages, and dedicated frame kits for steel sheds.

Engineered to Australian Standards

Building structural integrity depends entirely on rigorous engineering, proper materials, and strict adherence to Australian building regulations. Every light-gauge steel roof truss manufactured in our workshop uses genuine BlueScope TRUECORE® steel—engineered specifically for residential and light commercial framing in Australian conditions.

As an accredited member of NASH (National Association of Steel-framed Housing), Techsteel manufactures cold-formed steel components designed and engineered in alignment with Australia’s structural standards framework:

AS/NZS 4600

Cold-formed steel structures standard governing structural design methods.

AS 4100

Steel structures standards covering general steel fabrication principles.

NASH Standard

Residential and low-rise steel framing requirements for structural reliability.

AS 1397

Metallic-coated steel sheet specifications protecting TRUECORE® steel against corrosion.

AS 4055 & AS/NZS 1170

Structural design actions, wind load classifications, and dead/live load requirements for WA conditions.

Unlike timber framing erected to separate timber codes (such as AS 4440), cold-formed steel roof trusses are engineered using advanced software that calculates exact wind forces, point loads, and roof weights for your specific building site.

Spans, Spacing & Design Considerations

Designing a roof truss system requires balancing structural requirements, roof pitch, wind conditions, and ceiling loads. Light-gauge steel allows long clear spans without internal load-bearing walls, freeing up space for open-plan living rooms or column-free commercial floors.

Key design elements evaluated during the detailing phase include:

Truss spacing

Residential steel trusses are commonly spaced at 600 mm centres. However, this spacing is tailored according to wind classification, roof tile or sheet weights, and local building codes.

Wind classification

Coastal and exposed locations across WA require specific tie-down details, thicker steel gauges, or closer truss spacing to handle severe wind uplift.

Pitch and load requirements

Steeper roof pitches handle higher wind loads differently than low-pitch skillion roofs, while ceiling insulation and solar panel arrays introduce extra point loads that are calculated during the roof truss design phase.

Every single truss is detailed against your architectural drawings in-house before manufacturing begins, ensuring all load paths transfer safely down through your wall frames to the footings.

Steel vs Timber Roof Trusses: An Honest Comparison

When planning a roof build in Perth, deciding between light-gauge steel framing and traditional timber is one of the biggest choices you’ll make. Timber is often cheaper upfront for basic materials, but steel earns its investment back across construction efficiency, site safety, and long-term structural reliability.
Steel vs Timber Roof Trusses: An Honest Comparison
Feature Steel Trusses Timber Trusses
Strength High High
Durability Excellent Good with proper treatment
Termite Resistance Yes No
Moisture Resistance Excellent Can warp or rot
Fire Performance Non-combustible Combustible
Weight Lightweight Relatively heavier
Consistency Uniform and precise Natural variation
Pest Resistance Resistant Requires protection
Maintenance Low May require ongoing treatment
Long-Term Value Long-lasting Cost-effective option
The right material depends on your specific plans, engineering requirements, site conditions, and budget. At Techsteel, we offer clear, practical advice on your framing setup so you get a straight answer without a hard sell.

What Affects the Cost of Steel Roof Trusses

Because every structure is unique, roof framing is calculated individually based on the structural engineering requirements of your build plans.

Several main variables influence the overall cost of your truss package:

Clear span distance

Longer spans require deeper truss profiles, heavier steel gauges, or additional web bracing to carry roof loads.

Roof geometry & complexity

Simple dual-pitch gable roofs require fewer unique truss types than complex designs featuring multiple hips, valleys, dormers, or cathedral ceilings.

Wind loading & site conditions

Coastal sites or exposed hill locations require engineered tie-downs and heavier steel gauge configurations to satisfy WA wind codes.

Package scope

Selecting supply-only vs full site erection by our installation crew affects the final project cost.

To get an accurate, itemized figure tailored to your job, submit your building plans to Techsteel for a detailed estimate.

Why Perth Builders & Owners Choose Techsteel

Techsteel is a homegrown, family-run WA business built on practical building experience, carpentry know-how, and trade craftsmanship. We aren’t marketers selling imported frames—we are hands-on WA fabricators who understand how frames fit together on a real job site.

From high-volume commercial developments—like supplying frames for over 15 childcare centres for Makri Builders—to owner-builders crafting custom granny flats and extensions, our clients rely on our straight answers, high-grade TRUECORE® steel, and on-time delivery. When you deal with Techsteel, you get practical advice, honest service, and structural steel roof trusses perth builders trust to get the job done right.

To discuss your project or review your manufacturing requirements, contact our team or visit our About Us page to learn more about our WA operation.

Frequently Asked Questions

A roof truss is a pre-engineered, prefabricated triangular framework that supports a building’s roof cladding and ceiling linings. Manufactured off-site from steel or timber, trusses distribute structural loads outward to the building’s exterior load-bearing walls.
Roof trusses are pre-engineered off-site in a controlled factory environment and delivered ready to lift onto wall plates, offering fast installation, consistent dimensions, and large clear spans. Rafters are cut and assembled piece-by-piece on the job site by carpenters, requiring significantly more time, on-site labor, and timber material handling.
Steel roof trusses often carry a slightly higher initial material cost than standard timber. However, steel offsets this investment through faster site assembly, zero timber waste, and long-term savings from being immune to termite damage, rot, and structural warping.
The main considerations are a slightly higher upfront material cost compared to basic timber and the need to keep the protective metallic coating intact during handling. TRUECORE® steel features a specialized protective coating engineered to prevent corrosion, provided it is installed and cut according to standard industry guidelines.
Because steel has a high strength-to-weight ratio, steel roof trusses can achieve significantly longer clear spans than timber without internal supporting walls. The maximum achievable span depends on structural loads, roof pitch, wind conditions, and steel gauge, with every system engineered specifically to project plans.
In Australian residential construction, steel roof trusses are commonly installed at 600 mm centres. This spacing may be adjusted by structural engineers depending on the weight of the roofing material (such as heavy tiles vs steel sheets), wind classification, and ceiling loads.
Light-gauge steel roof trusses are designed and manufactured in accordance with cold-formed steel standards, including AS/NZS 4600, AS 4100, and the NASH Standard for residential steel framing. The metallic coating on TRUECORE® steel complies with AS 1397, while structural loading is calculated under AS/NZS 1170 and AS 4055.
TRUECORE® steel is manufactured by BlueScope with a specialized zinc/aluminium alloy coating designed to resist corrosion in Australian conditions. When installed correctly and kept free from direct moisture traps or harsh chemical exposure, steel trusses will not rust or degrade over the life of the building.
Light-gauge steel is non-combustible, meaning it will not ignite, burn, or contribute fuel to a house fire. While extreme heat can weaken structural steel over time, steel framing helps slow flame spread across a roof cavity compared to timber framing.
Steel is inorganic and provides zero food value to termites or wood-boring insects. While surrounding timber fixtures or furniture in a house can still attract pests, steel roof trusses remain structurally immune to termite attack without requiring periodic chemical treatments.
The total cost of roof trusses in Perth varies according to clear span distances, roof shape complexity, steel gauge requirements, total quantity, and whether you require supply-only delivery or full site installation. Submit your architectural plans to Techsteel for an accurate project estimate.
Yes. Techsteel manufactures light-gauge steel trusses for residential homes, granny flats, rear extensions, owner-builder projects, garden sheds, workshops, and large commercial structures.
Techsteel offers both options. We provide supply-only truss packages delivered direct to site for builders and DIY owner-builders, as well as a full supply-and-install service using our dedicated framing installation crew.

Ready to place your order?

Describe your site, build and timeline – and we’ll take it from there. For engineered steel roof trusses Perth projects rely on for accuracy and durability, get in touch with the Techsteel team today.

Get an estimate

Techsteel supplies light gauge steel framing in Western Australia

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