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ΕλληνικάAt Fengtu Group, we specialize in precision-engineered light gauge steel (LGS) framing and deliver complete, turn-key villa solutions. From smart design to final assembly, we empower developers, contractors, and homeowners to build faster, stronger, and greener.
Why Choose Light Gauge Steel Framing?
Exceptional Strength & Durability: Engineered from high-tensile, galvanized steel that resists corrosion, termites, mold, and severe seismic activity.
Precision Engineering: Manufactured using advanced CNC roll-forming technology to ensure exact dimensions, zero waste, and zero structural warping over time.
Speed of Construction: Lightweight components reduce foundation costs and accelerate structural framing speed by up to 60% compared to traditional masonry.
Eco-Friendly & Energy-Efficient: 100% recyclable materials paired with superior thermal and acoustic insulation systems for low-energy living.
Seamless On-Site Installation
Pre-Engineered Prefabrication: Every steel stud and track is pre-cut, pre-punched, and numbered according to factory blueprints for effortless assembly.
Plug-and-Play Assembly: No heavy crane equipment needed. Components can be easily assembled on-site using standard fastening tools.
Comprehensive Technical Guidance: We provide detailed 3D assembly guides, structural drawings, and remote/on-site engineering assistance to ensure your crew builds with complete confidence.
Our End-to-End Service & After-Sales Support
Full Villa Solutions: We supply complete building packages, including LGS framing, exterior cladding, roofing, insulation, windows, and doors.
Structural Warranty: Every light steel framing package is backed by a robust manufacturer structural warranty for long-term peace of mind.
Dedicated After-Sales Care: Our global support team is available to assist with structural inspections, maintenance guidance, and post-completion inquiries.
Light gauge steel (LGS) villas are rapidly transforming modern rural housing across China.
As villagers upgrade from traditional brick-and-concrete structures, LGS technology has become the preferred choice for self-built rural homes due to its quick construction, earthquake resistance, and exceptional performance in harsh climates.
The Rise of LGS Housing in Rural China
Efficient Construction: Prefabricated components allow rural homebuilders to complete structural assembly within weeks, minimizing disruption and labor dependencies.
Disaster Resistance: The high strength-to-weight ratio provides superior seismic safety and wind resistance compared to traditional rural masonry.
Land & Space Maximization: Thinner profile walls yield up to 5% to 10% more usable interior floor area than conventional thick brick walls.
Thermal Efficiency & Extreme Cold Protection
| Engineering Feature | Cold-Climate Benefit |
| Continuous Exterior Insulation (EIFS) | Wraps the entire steel structure from the outside, effectively eliminating thermal bridges and stopping cold air from penetrating structural joints. |
| Multi-Layered Wall Assemblies | Combines high-density glass wool or rock wool insulation inside the steel stud cavity with exterior thermal boards for high R-value insulation. |
| Air-Tight Vapor Barriers | Prevents cold winds from seeping into interior spaces while managing moisture condensation to protect structural integrity during extreme freezes. |
| Thermal Break Sub-Frames | Isolates metal connectors to ensure heat stays inside during harsh northern winters, significantly lowering heating bills. |
Light Gauge Steel (LGS) Specifications & Technical Considerations for Low-Rise Construction (Up to 3 Stories)
1. Standard Light Gauge Steel Specifications (轻钢龙骨常用规格)
Light gauge steel components are manufactured from high-tensile, cold-formed structural steel protected by heavy-duty zinc or zinc-aluminum anti-corrosion coatings.
Steel Grade: G550 (Yield Strength 550 MPa)
Coating Standard: Galvanized Z275 (275 g/m2) or Galvalume AZ150 150g/m2 Aluminum-Zinc Alloy)
| Profile Type | Web Depth (W) | Flange Width (F) | Stiffening Lip (L) | Thickness (BMT) | Primary Structural Role |
| C-Stud Section | 89 mm / 140 mm | 38 mm – 41 mm | 10 mm – 12 mm | 0.75 mm – 1.20 mm | Load-bearing wall studs, floor joists, roof truss chords |
| U-Track Section | 91 mm / 142 mm | 30 mm – 40 mm | - | 0.75 mm – 1.20 mm | Top & bottom wall tracks, floor rim tracks |
| Hat / Batten (Omega) | 22 mm – 40 mm | 35 mm – 50 mm | 10 mm – 15 mm | 0.50 mm – 0.80 mm | Roof battens, ceiling furring, exterior facade sub-framing |
| L-Bracing & Strap | 50 mm – 100 mm | 50 mm – 100 mm | - | 1.20 mm – 2.00 mm | Tension strap bracing (X-bracing), hold-down ties |
2. Critical Considerations for 1 to 3-Story LGS Buildings (建造3层及以下房屋的注意事项)
Building multi-story LGS houses (up to 3 floors) introduces accumulated vertical loads and dynamic wind/seismic forces that require strict engineering controls during design and construction:
A. Foundation & Ground Anchorage
Strict Levelness Limits: The concrete slab must be level within $\pm 2\text{ mm}$ over 3 meters. Inaccurate slab levels cause cumulative vertical misalignment on upper floors.
Heavy-Duty Hold-Downs: Ground-floor framing requires high-capacity chemical anchor bolts and embedded hold-down connectors to counteract uplift and lateral overturning forces from wind and earthquakes.
Damp-Proofing: Always lay a heavy-duty moisture-proof membrane beneath the bottom U-track to prevent moisture from wicking into the steel wall assembly.
B. Structural Load Path & Framing Alignment
In-Line Framing: Wall studs on upper floors (2nd & 3rd floors) must align directly over the ground-floor studs to maintain a continuous load path down to the foundation.
Cumulative Load Capacity: Ground-floor studs bear the combined weight of upper levels. Use thicker gauge steel (1.0 mm - 1.2 mm) or back-to-back (box/I-section) studs for ground-floor load-bearing walls.
Lateral Shear Resistance: Multi-story structures require robust lateral bracing using steel tension straps (X-bracing) or structural shear panels (OSB / Fiber Cement Board) with precise screw spacing along perimeter studs.
C. Floor System & Acoustic Insulation
Floor Deflection Control: Use deeper C-profiles (140 mm - 200 mm) with tight stud spacing (400 mm C/C) to eliminate floor vibration and flex under living loads.
Sound Proofing: To prevent impact noise transmission between floors, install acoustic rubber underlayments and pour a 30 - 50 mm layer of lightweight screed over structural floor decking.
D. Thermal Bridging & Moisture Barriers
Exterior Insulation (EIFS): Wrap the entire outer perimeter in continuous insulation (XPS / EPS boards) to prevent steel studs from acting as thermal bridges.
Condensation Control: Apply breathable vapor control membranes on exterior wall faces to allow internal moisture to escape while blocking cold wind penetration.
