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Explore our certified range of prefabricated cold-formed structural steel solutions manufactured to ISO 9001:2015 standards and optimized for rapid assembly in urban and industrial zones.
Technical architecture, structural load parameters, material metallurgy, and structural performance standards tailored for the Île-de-France construction eco-system.
Lightweight Steel Gauge Construction (LGS), also referred to as Cold-Formed Steel (CFS) building framing, represents a structural paradigm shift across European municipal developments. As urban density within Greater Paris accelerates under the Grand Paris Express infrastructure transformation and local municipalities enforce strict environmental guidelines under RE2020 (Réglementation Environnementale 2020), industrial site developers are abandoning heavy masonry and hot-rolled structural steel in favor of high-yield structural cold-formed profiles.
Our lightweight structural steel framework utilizes premium structural steel coils adhering to EN 10346 specifications (S350GD + Z275 to Z600 anti-corrosion zinc protection). By executing precise roll-forming processes within our automated facility in Turkey, each structural stud, track, and joist is pre-punched with service utility access slots, dimpled for countersunk screw placement, and ink-jet labeled to match BIM (Building Information Modeling) execution blueprints.
Structural profiles utilize high-tensile steel S350GD to S550ED grade material with hot-dip galvanization coating (minimum Z275 g/m²), offering class C3/C4 atmospheric corrosion protection per ISO 12944.
Calculated strictly under EN 1993-1-3 structural rules for cold-formed members, ensuring verified resistance against localized buckling, flexural-torsional buckling, and seismic force vectors under Eurocode 8.
Pre-engineered bolt-together systems drastically reduce crane equipment rental windows in constrained urban areas like Saint-Denis, Boulogne-Billancourt, and Roissy-CDG logistics sectors.
| Structural Attribute | Lightweight Cold-Formed Steel (Nexa) | Traditional Reinforced Concrete | Hot-Rolled Heavy Structural Steel |
|---|---|---|---|
| Structural Weight Ratio | Low (~25–35 kg/m²) | High (~300–500 kg/m²) | Medium-High (~80–150 kg/m²) |
| Paris Site Delivery Lead Time | Rapid (3 to 6 Weeks Manufacturing) | Extended (On-site curing delays) | Moderate (Complex site rigging) |
| RE2020 Carbon Footprint | Minimal (100% Recyclable Steel) | High (Significant embodied CO₂) | Moderate-High |
| Foundation Load Requirements | Reduced slab thickness & shallow footings | Heavy deep pile foundation systems | Substantial concrete footing required |
| Thermal Bridge Elimination | External insulation (ETICS) continuous layer | Requires internal thermal breaks | Requires complex thermal isolation structural pads |
Information Gain Insight: Structural analysis indicates that adopting cold-formed lightweight steel framing reduces overall dead-load weight by up to 75% compared to reinforced concrete. This structural weight reduction allows developer clients in Paris to add rooftop vertical extensions (surélévation) without exceeding structural capacities of historic masonry substructures.
Solving specific spatial, architectural, and environmental challenges within urban municipal zones, suburban industrial hubs, and commercial sectors.
Under strict Paris urban density planning regulations (Plan Local d'Urbanisme - PLU), lightweight steel allows property owners to construct additional residential or commercial floors on existing structures in intra-muros Paris without compromising underlying structural integrity.
High-span clear space structural framing engineered for fast-track distribution centers along key logistics arteries such as the A1, A10, and A86 corridors. Designed for high clearance, overhead crane mounting, and heavy vehicle loading access.
Flexible prefabricated office administrative facilities for expanding industrial operational hubs in Seine-Saint-Denis, Val-d'Oise, and Yvelines. Rapid assembly minimizes local traffic disruption and complies with quiet construction policies.
Heavy-duty, insulated steel structures created specifically to house precision manufacturing equipment, electrical power control systems, or municipal utility processing centers requiring controlled thermal and humidity envelope conditions.
Modular, highly dismantlable lightweight structural steel frameworks ideal for temporary event housing, municipal exhibition spaces, and emergency healthcare facilities requiring swift relocation capability across France.
Aligning structural steel manufacturing with French low-carbon mandates and urban renovation strategies.
The French RE2020 standard places strict caps on carbon emissions associated with construction materials throughout a building's entire life cycle (LCA). Cold-formed lightweight steel framing provides an optimal response: it is 100% recyclable, reduces transportation payload weights, generates minimal site waste, and couples seamlessly with high-efficiency PIR/Rockwool insulation panels to reach near-zero thermal conductivity.
Construction within inner-ring Paris departments (Hauts-de-Seine, Seine-Saint-Denis, Val-de-Marne) is tightly governed by municipal noise restrictions and narrow delivery access routes. Off-site prefabrication of lightweight steel trusses and wall panels ensures that over 80% of fabrication occurs in our plant, reducing site labor, noise emissions, and flatbed transport truck cycles by up to 60%.
Why leading European contractors choose our structural manufacturing network for critical infrastructure projects.
Nexa Prefab operates a state-of-the-art automated steel production and manufacturing plant located in Kocaeli, Turkey (Gebze industrial zone). Operating with ISO 9001:2015, ISO 14001, and EN 1090-1 factory production control certifications, our industrial facility is engineered for high-volume structural output, supplying prefabricated modular systems, lightweight steel frame kits, and industrial steel warehouses to more than 60 countries across Europe, the Middle East, and Africa.
From initial structural BIM modeling using TEKLA and Vertex BD software to direct cold-roll forming, CNC punching, quality verification, and export packing—every stage occurs under rigorous internal FPC oversight.
Situated strategically near major deep-water ports and major European highway transport routes, we offer streamlined road-freight flatbed shipping directly to job sites throughout Île-de-France within tight schedule timelines.
Our engineering team delivers complete calculations, anchor bolt connection details, assembly shop drawings, and structural validation documentation matching local French engineering office submission criteria.
Essential guidance on regulatory compliance, structural design, logistics, and site installation for lightweight steel projects in France.
Yes. All structural calculations are designed in accordance with Eurocode 3 (EN 1993-1-3) for cold-formed steel structural members and Eurocode 8 for seismic design. When combined with our specified insulated sandwich panels (PIR core or Mineral Wool) or external insulation finishing systems (ETICS), the building envelope easily satisfies French RE2020 thermal efficiency and low-carbon criteria.
Our lightweight structural steel elements are bundled into compact, high-density shipping packages or flat-pack configurations. This compact volume minimizes shipping dimensions, allowing standard flatbed trailers or container trucks to navigate tight municipal streets in Greater Paris without requiring heavy oversized vehicle transport permits.
Depending on building scale and structural complexity, design finalized fabrication at our Kocaeli factory typically takes 2 to 4 weeks. Shipping via direct road freight or maritime transport to France adds approximately 10 to 14 days, offering significantly faster project turnaround than traditional concrete construction methods.
Lightweight structural steel itself is non-combustible (Euroclass A1). When clad with double-layer Type X fire-rated gypsum boards or stone-wool core sandwich panels, our wall and ceiling assemblies achieve fire resistance ratings ranging from REI 30 up to REI 120 minutes, complying fully with French ERP (Établissements Recevant du Public) safety regulations.
Absolutement. Our engineering team utilizes parametric BIM design platforms to customize clear-span distances (up to 30+ meters without intermediate columns), roof pitch variations (gable, monopitch, flat), eaves heights, overhead crane runway supports, and specialized wall cutouts for industrial roll-up doors and HVAC systems.
Cold-formed steel framed with hot-dip galvanization (Z275+) does not warp, rot, shrink, or absorb moisture over time. It is completely immune to termite attack and fungal degradation, guaranteeing structural dimensional stability over a 50+ year design life cycle with zero structural maintenance required for the frame.
Because lightweight steel buildings exert significantly lower dead-loads than masonry or heavy steel, developers can utilize thinner reinforced concrete ground slabs, strip footings, or screw-pile foundations. We provide anchor bolt placement drawings to your local French civil masonry contractor prior to delivery.
Every building kit is delivered with detailed piece-mark numbering, explicit bolt-assembly instruction drawings, and 3D structural installation models. We can provide on-site technical installation supervisory engineers or connect you with certified local European erection partners to complete turnkey assembly.
Contact our technical sales team today to receive a comprehensive structural proposal, preliminary BIM layout consultation, and competitive direct-from-manufacturer quotation for your upcoming project in France.