Guide comparatif complet des coûts pour la construction en acier léger formé à froid (LGSF) face au parpaing et au bois.
In 2026, the manufactured framing kit for a light gauge steel (LGSF / CFS) residential house costs between €95 and €180 per m² of gross floor area delivered to European jobsites. A fully closed weather-tight dry envelope (frame + external thermal break insulation + cement board sheathing + roof trusses) ranges from €240 to €390 per m². Complete turnkey residential construction typically costs €950 to €1,650 per m², representing a 15–25% cost saving and up to a 60% construction time reduction compared to traditional brick and concrete masonry.
Cold-formed light gauge steel framing (CFS / LGSF) is transforming modern European residential construction. Engineered from high-tensile structural steel (EN 10346 S350GD with Z275 galvanizing), LGS profiles provide an unmatched strength-to-weight ratio, millimeter CNC manufacturing precision, and complete dimensional stability with zero shrinkage, warping, or rotting over the building lifespan.
From a commercial perspective, light gauge steel residential projects benefit from two major cost-efficiency factors:
Below is a realistic 2026 cost matrix for building a modern, energy-efficient A+ rated residential home using light gauge steel framing in Central/Western Europe:
| Construction Phase / Trade | Specification / Build-up | Cost Range (€/m²) | Share of Budget |
|---|---|---|---|
| Architectural & Structural BIM | Tekla / Vertex BD 3D modeling & Eurocode 3 calculation | €15 – €30 | 2% – 3% |
| LGS Framing Kit (Delivered) | S350GD+Z275 (0.9mm–1.5mm) CNC studs, tracks, trusses & hardware | €95 – €180 | 10% – 14% |
| Concrete Raft Foundation | 200mm insulated raft slab with EPS edge insulation | €90 – €150 | 8% – 11% |
| External Wall Assembly | 100mm Rockwool batt + 80mm external EPS/PIR thermal insulation + EIFS | €110 – €170 | 10% – 13% |
| Roofing & Rainwater System | Standing seam zinc-alu or clay tiles + 200mm mineral wool insulation | €75 – €130 | 7% – 9% |
| Windows & External Doors | Triple-glazed Passivhaus uPVC / Thermal break aluminum (Uw ≤ 0.85) | €120 – €220 | 10% – 14% |
| Internal Drywall & Acoustic Partitions | Double plasterboard + 75mm acoustic insulation + paint finish | €70 – €120 | 6% – 8% |
| MEP (Electrical, Heat Pump, Underfloor) | Air-to-water heat pump + MVHR heat recovery + smart electrical | €160 – €280 | 15% – 18% |
| Interior Finishes & Sanitary | Engineered oak flooring, Italian ceramic tiles, modern bathroom suites | €180 – €320 | 16% – 20% |
| Residential Archetype | Gross Area | Framing Kit Package | Weather-tight Shell | Turnkey Finished Budget |
|---|---|---|---|---|
| Single-Storey Modern Bungalow | 120 m² | €14,000 – €20,000 | €36,000 – €48,000 | €120,000 – €175,000 |
| Two-Storey Contemporary Villa | 200 m² | €24,000 – €35,000 | €62,000 – €82,000 | €210,000 – €310,000 |
| Executive Luxury Residence | 350 m² | €45,000 – €65,000 | €115,000 – €150,000 | €390,000 – €580,000 |
| Multi-Unit Row Housing (per unit) | 110 m² | €12,500 – €17,500 | €32,000 – €42,000 | €105,000 – €155,000 |
Develop floor plans optimized for standard 600mm LGS stud spacing to eliminate material offcut waste.
Structure modeled in specialized LGS CAD software, running Eurocode 3 (EN 1993-1-3) checks on axial and shear walls.
Factory roll-forms all members with pre-punched screw dimples, service holes, and alphanumeric piece marks.
Panels bundled into 40ft shipping containers with assembly fasteners and 3D manual.
Base tracks bolted into concrete with chemical anchors and moisture-proof DPC membrane.
Cladding, insulation, and pre-punched conduit routing completed in a clean, weather-protected environment.
Transmettez dimensions, portées et coordonnées géographiques. Notre bureau d'études structure fournit une offre détaillée et une pré-analyse Eurocode 3 sous 24 à 48h.
Réponses détaillées sur l'ingénierie Eurocode, la fabrication, l'exportation et le montage.
A precision CNC manufactured light gauge steel framing kit for a 150 m² house costs approximately €16,000 to €26,000 delivered in export containers, including wall studs, floor joists, roof trusses, bracing straps, and assembly hardware.
Yes. S350GD galvanized steel will not rot, warp, crack, or suffer termite damage. Steel is non-combustible (Euroclass A1). Combined with fire-rated drywall and mineral wool, LGS wall assemblies achieve REI 60 to REI 120 fire resistance ratings.
A properly engineered LGS wall assembly featuring staggered studs, acoustic insulation, resilient channels, and double drywall easily achieves sound reduction indices of Rw = 52 to 58 dB, outperforming single-layer brick or concrete block partitions.
LGS is one of the most earthquake-resilient construction systems available. Because earthquake inertial forces are directly proportional to building weight, an LGS structure experiences 70% lower seismic loads than masonry or concrete buildings.
Thermal bridging is eliminated by applying continuous external insulation (EIFS) of 80mm–120mm EPS/PIR or mineral wool over the external sheathing board, creating an unbroken thermal blanket compliant with Passivhaus standards.
Transmettez-nous vos dimensions ou plans pour une analyse d'ingénierie et une offre détaillée sous 24 à 48 heures.