Structural steel fabrication to AS 1554.1
WJC fabricates and installs structural steel to AS 1554.1 for industrial plant, mine sites, energy projects and farms. We work to your engineering drawings, in the workshop or on site, with in-house rigging and crane capability to put the steel where it needs to go.
Structural steel work
- Structural steel fabrication and welding to AS 1554.1
- On-site erection to engineering drawings
- Platforms, walkways, handrails and access steel
- Pipe racks, supports, frames and skids
- Steel shed and building frame erection to engineering drawings
- Plant upgrades and structural modifications
- Lift planning, dogging, rigging and non-slewing crane operation
Fabricate it, lift it, install it
Because our own team handles the rigging and lifting, there is no waiting on a separate crew. We plan the lift, place the steel and finish the welding in one coordinated scope.
We also fabricate for rural clients, from cattle crates and grids to pump station frames and farm sheds.
Structural steel in Dalby, built to your engineer's design
We fabricate and erect structural steel to your engineer's certified drawings, whether that's a plant platform, a pipe rack or a new shed frame in Dalby or out on the Western Downs.
If your project is still being designed, call us early. Sorting out fabrication, transport and site access while the drawings are being drafted saves rework and delays once the steel is ready to go up.
Why work with WJC
- Certified to AS 1554.1 structural steel, AS/NZS 3992 pressure welding and AS/NZS ISO 9606-1 welder qualification
- Regular third-party welding supervisor testing and inspection
- Over 15 years of on-site experience in energy, mining, gas and agriculture
- Fully equipped site vehicles with high quality, reliable tooling
- Standard 11, coal board medical, confined space and working at heights
- Available 24/7 for breakdowns and emergency call-outs
Industries we serve
Gas and CSG
Pressure and pipeline welding, tie-ins and maintenance for the Surat Basin gas fields.
Mining
Heavy equipment boilermaking, fixed plant maintenance and shutdown crews for Queensland mines.
Power Stations
Boiler, air heater, mill and duct work overhauls and pressure welding for outages.
Renewables
Structural steel, fabrication and maintenance support for solar, wind and battery projects.
Agriculture
Farm machinery repairs, cattle crates, irrigation pump stations, trailers and on-farm steelwork.
Where we work
Based in Dalby and mobilised across the Western Downs and beyond.
Related services
Mobile Boilermaking
Fully equipped site vehicles for on-site cutting, fabrication and repair, wherever the job is.
Pressure Welding
Certified pressure welding to AS/NZS 3992 for boiler tubes, headers, vessels and high-pressure pipework.
Pipeline Welding
In-situ pipeline welding, tie-ins and weld remediation for the Surat Basin gas fields.
Mechanical Fitting
Pump, valve and gearbox rebuilds, rotating equipment overhauls and laser shaft alignment.
Shutdown Crews
Boilermakers, fitters and riggers for planned shutdowns and outages, on schedule.
24/7 Breakdown Repairs
After-hours and emergency call-outs for plant, machinery and pipework failures.
Common questions
What standard do you fabricate structural steel to?
Structural welding is completed to AS 1554.1, with regular third-party welding supervisor testing and inspection.
Do you design structural steel?
We fabricate and erect to drawings from your engineer or designer. Talk to us while the design is underway and we can make sure it's practical to build and install on your site.
Can you install the steel as well as fabricate it?
Yes. We hold dogging, rigging and non-slewing crane licences, so we can plan and complete the lift and installation ourselves.
Planning a shutdown, project or breakdown response?
Talk to us about scope, timing and site requirements. We'll talk the job through with you directly.