Welded Steel Modules and Frames for Modular Construction
Wall and floor modules, prefabricated frames, connectors and brackets for off-site and modular building systems. Built in welding jigs to tight assembly tolerances, coated and delivered on schedule, from the first pilot modules to full rollout.
- Jig-builtIdentical modules
- ISO 13920Assembly tolerances
- EN 1090 EXC3ISO 3834-2
- Price per moduleAll-inclusive
- Since 1972Steelwork in İzmir
Your Building System, Our Welding Line
Modular and off-site building systems live or die on repeatability. Every wall module has to bolt to the next one on site without grinding or shimming, and the steel price per module decides whether the system can compete with conventional construction.
We build welded modules and frames in dedicated jigs, check the interfaces that matter for site assembly, and price them per module, all-inclusive. Start-ups get a pilot batch to test their system; once it works, the same jigs and procedures carry the series. Structural parts are welded under our EN 1090-2 EXC3 certification.
What we offer
- ProductsWall, floor, roof modules
- MaterialsS235–S355, tube and sheet
- WeldingJig, robotic, MIG/MAG
- TolerancesISO 13920, interfaces checked
- FinishPrimer, paint, galvanizing
- StartPilot batch, then call-off
What We Make for Modular Construction
Wall and Floor Modules
Welded sheet and tube modules with internal stiffeners, openings for services and bolted connection plates.
Panel Frames
Tube frames with welded plate panels and ribs, built square and flat for cladding and insulation.
Prefabricated Steel Frames
Columns, beams and portal frames for modular units, with drilled connection plates and lifting points.
Connectors and Brackets
Laser-cut and bent connection brackets, façade brackets and node plates in large quantities.
Laser cutting →
Service Frames and Skids
Frames and skids for MEP modules, plant units and technical rooms that are built off-site.
Packed for Site Delivery
Modules packed and labelled per building and per floor, loaded in the order your site needs them.
How We Take a Building System into Series
Design review
We look at weld access, interfaces and tolerances, and suggest changes that save welding hours per module.
Price per module
An all-inclusive price per module and per batch, with the jig cost spread over the series.
Pilot batch
A first batch of modules is built, measured and test-assembled before the series starts.
Jig and robot program
Jigs are fixed and repeat welds go onto our KUKA welding robot.
Series and call-off
Modules are built in batches and called off to match your project schedule.
Documentation
Material certificates EN 10204 3.1, weld records and dimensional reports per batch.
Welded Frames and Modules in Practice
Questions from Modular Construction Companies
Can you work with a start-up that is still developing its system?
Yes. We build pilot batches and give feedback on cost and weldability while the design is still changing, then freeze the jigs when the design is final.
How do you keep modules identical?
Each module is welded in a jig with fixed datums, and the interfaces used for site assembly are measured on the first article and sampled during the series.
Do you charge separately for jigs?
We usually include the jig in the price per module over the series, so you compare one all-inclusive number.
What tolerances can you hold?
Welded frames to ISO 13920 class B or better on request; connection holes and plates can be drilled or machined after welding where tighter positions are needed.
Which certification do you have for structural steel?
EN 1090-2 up to EXC3, ISO 3834-2 and ISO 9001, with EN 10204 3.1 material certificates on every order.
What do you need for a quote?
The module drawing or 3D model, material, the number of modules per project and per year, coating and delivery country.
Steel Modules for Modular Construction, Made in Türkiye
Construction-tech companies often design a clever building system and then find that the steel is the hardest part to buy. Local fabricators quote modules as one-off steelwork, and the price per module never comes down. A fabricator that works in series, with jigs and robot welding, prices the module as a product.
Priced as a product
We quote each module by its material, welding time and finish, then hold that price for the batch. Repeat projects use the same jigs and programs, which is where the cost per module drops. See our serial fabrication and the guide on moving from prototype to series.
Built to fit on site
Modules are only as good as their interfaces. Read our guide on welding tolerances and how we machine after welding where holes have to line up across modules.
Send the drawing of your module.
Include modules per project, yearly volume and finish. We reply with feasibility, lead time and a price per module.