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C · U · 75 – 150 mm
LGS C studs & U tracks
Lipped C studs and U tracks, cut, punched and labelled.
Detalhes e tabelas →
Solution · Light gauge steel framing
Light gauge steel framing – precise, light and fast to build
Cold-formed C studs, tracks, joists, roof trusses and battens in high-tensile G550 / G300 steel with Z275 – AZ150 coatings – supplied as members, prefabricated wall panels, floor cassettes, trusses or complete building kits, designed to AISI S100 / S240, AS/NZS 4600 and EN 1993-1-3.
- 0.75 – 2.4 mm
- Steel thickness G550 · G450 · G300
- 75 – 300 mm
- Stud and joist webs C, U, top-hat, box
- ±1 mm
- CNC cut and punch labelled to the panel
- 1 – 6+
- Storeys load-bearing walls
What light gauge steel framing is
Light gauge steel (LGS) framing – also called cold-formed steel (CFS) framing – builds walls, floors and roofs from thin galvanised or zinc-aluminium coated steel strip, roll-formed into C, U and top-hat sections. Members are cut to length, punched for services and screws, and assembled with self-drilling screws into studs, joists and trusses, much like a timber frame but straight, non-combustible and immune to termites and rot.
LGS is used for houses and townhouses, schools, clinics, hotels and mid-rise apartments, for infill and partition walls in steel and concrete frames, for roof trusses over concrete buildings and for factory-built modules. World Steel supplies LGS framing together with our steel frames, floor decks and anchors and fasteners, so the whole structure is coordinated in one model.
LGS range
Light gauge steel products
Each product has its own page with sections, grades, coatings, standards and ordering data.
Panels
LGS load-bearing wall panels
Prefabricated load-bearing wall panels with bracing and lintels.
Detalhes e tabelas →150 – 300 mm
LGS floor joists & cassettes
Floor joists, rim tracks and floor cassettes.
Detalhes e tabelas →
Top-hat · furring
Top-hat battens & furring channels
Roof battens, ceiling and wall furring channels.
Detalhes e tabelas →
Infill · drywall
LGS infill walls, facades & partitions
Non-load-bearing infill, facade backing and partitions.
Detalhes e tabelas →
Screws · straps · hold-downs
LGS screws, hold-downs, straps & anchors
Connectors and anchors that make the frame a structure.
Detalhes e tabelas →Panels · modules
Panelised & volumetric LGS modules
Factory-built panels and volumetric modules.
Detalhes e tabelas →Building kits
Complete LGS houses & low-rise buildings
Complete LGS kits for houses and low-rise buildings.
Detalhes e tabelas →Where LGS is used
Typical light gauge steel projects
From a single house to the internal walls of a high-rise – the same members, designed for the job.
1 – 3 storeys
Houses and townhouses
Complete frames: walls, floors, trusses and battens.
4 – 6+ storeys
Mid-rise apartments and hotels
Load-bearing walls on a concrete podium, or infill in a steel frame.
low-rise
Schools, clinics, offices
Fast, dry construction with long spans and clean finishes.
re-roofing
Roof trusses over concrete
Light trusses on concrete frames and for roof upgrades.
steel / concrete frames
Infill walls and facades
Facade backing, partitions, fire and acoustic walls.
off-site
Modules and site camps
Volumetric units for housing, camps and site offices.
Aplicações
Why build with light gauge steel
01
Light
A frame several times lighter than concrete – smaller foundations and lower transport cost.
02
Precise
CNC roll-formed, cut and punched from the model – straight walls, square corners.
03
Fast
Panels and trusses arrive ready to stand – a house frame goes up in days.
04
Durable
Coated steel does not rot, warp, shrink or feed termites.
05
Non-combustible
Steel adds no fuel; fire ratings come from tested board systems.
06
Recyclable
Steel is reusable and recyclable, with little site waste.
Normas e conformidade
Design, material and construction standards
LGS members are designed as cold-formed steel; wall and floor systems are rated with tested assemblies:
Vietnam & Asia
- AISI S100 · AS/NZS 4600 · EN 1993-1-3Used in practice for member design
- QCVN 06:2022/BXDFire safety of buildings
- TCVN 2737Loads and actions
- QCVN 02:2022/BXDNatural conditions – wind and seismic
United States
- AISI S100Cold-formed steel structural members
- AISI S240Cold-formed steel structural framing
- AISI S220Non-structural members
- AISI S400Seismic design of CFS systems
- ASTM A1003 · C955 · C645Sheet steel and framing members
Australia / NZ
- AS/NZS 4600Cold-formed steel structures
- NASH StandardResidential and low-rise steel framing
- AS 1397Metallic-coated steel sheet – G550 / G300, Z / AZ / AM
- NCC Volume TwoHousing provisions – steel framing via NASH
Europe
- EN 1993-1-3Cold-formed members and sheeting
- EN 1090-2 · EN 1090-4Execution of steel and cold-formed structures
- EN 10346Continuously hot-dip coated steel – S350GD – S550GD
- EN 14195Metal framing for gypsum board systems
Resumo apenas para orientação – prevalecem a especificação do projeto, a edição da norma adotada e a autoridade competente.
Engenharia
One system, from foundation to ridge
Tracks are anchored to the slab, studs carry the walls, joists and cassettes form the floors, trusses span the roof and battens carry the cladding. Strap or sheet bracing and hold-downs take wind and earthquake loads to the foundation. Every member is designed, detailed and labelled as part of the same model.
Engenharia
The sections behind every frame
Lipped C sections work as studs, joists and truss chords; unlipped U tracks hold the studs at top and bottom; top-hat sections make battens; back-to-back and boxed sections carry lintels and heavy posts. Thickness and steel grade are chosen member by member, so the frame uses steel only where it is needed.
Engenharia
Walls that perform
Studs at 400 or 600 mm centres are lined with fibre-cement, gypsum or OSB boards, filled with mineral wool and finished with a weather barrier and cladding. Fire, acoustic and thermal ratings come from the tested board system, so walls are specified as complete assemblies – not just steel.
Engenharia
LGS compared with other systems
LGS combines the speed and dryness of a timber frame with the durability of steel and a fraction of the weight of concrete. For long spans, heavy loads and high-rise frames it works alongside hot-rolled steel and concrete rather than replacing them.
Reference data
Sections, steel and members
Typical values for orientation only. Section properties and capacities come from the profile manufacturer's tables and the design standard for the project.
| Member | Web (mm) | Flange (mm) | Lip (mm) | Thickness (mm) | Typical use |
|---|---|---|---|---|---|
| C stud | 75 · 89 · 92 · 100 | 35 – 41 | 9 – 12 | 0.75 – 1.2 | Load-bearing walls 1 – 2 storeys, infill walls |
| C stud (heavy) | 140 · 150 | 41 – 50 | 12 – 15 | 1.0 – 2.0 | Tall walls, lower storeys of mid-rise, facades |
| U track | to suit stud | 32 – 50 | – | 0.75 – 1.6 | Top and bottom plates, headers |
| C joist | 150 · 200 · 250 · 300 | 41 – 65 | 12 – 20 | 1.0 – 2.4 | Floor joists, rafters, purlin-type members |
| Truss chord / web | 75 · 89 | 35 – 41 | 9 – 12 | 0.75 – 1.2 | Roof trusses |
| Top-hat batten | 22 · 40 · 61 · 120 (height) | – | – | 0.42 – 1.2 | Roof battens, ceiling and wall furring |
| Back-to-back / boxed | 2 × C or C + U | – | – | 1.0 – 2.4 | Lintels, posts, jamb studs |
| Example | Meaning |
|---|---|
| 362S162-43 | 3-5/8 in web, S = stud / joist (lipped C), 1-5/8 in flange, 43 mil (0.0451 in design thickness) |
| 600S162-54 | 6 in web, lipped C, 1-5/8 in flange, 54 mil (0.0566 in) |
| 362T125-33 | 3-5/8 in track (T = unlipped U), 1-1/4 in flange, 33 mil (0.0346 in) |
| Style letters | S stud / joist · T track · U channel · F furring (hat) |
| Mil thicknesses | 18 · 27 · 30 · 33 · 43 · 54 · 68 · 97 mil – structural members generally 33 mil and heavier |
| Market | Steel | Yield | Typical coating |
|---|---|---|---|
| Australia / NZ | AS 1397 G550 · G450 · G300 | 550 · 450 · 300 MPa | Z275, AZ150 or AM; Z350 / AZ200 for exposed areas |
| United States | ASTM A1003 ST33H · ST50H | 33 · 50 ksi (230 · 340 MPa) | G60 minimum for structural members; G90 for exterior / coastal |
| Europe | EN 10346 S350GD · S450GD · S550GD | 350 · 450 · 550 MPa | Z275 or ZM (Zn-Mg) equivalent |
| Vietnam & Asia | G550 / G450 / G300 to AS 1397 or JIS G 3321 | 550 · 450 · 300 MPa | AZ100 – AZ150 zinc-aluminium; Z275 galvanised |
| Element | Members | Notes |
|---|---|---|
| Walls | Studs, tracks, noggings, lintels, jamb studs, bracing | Studs at 400 / 600 mm, aligned with joists and trusses above |
| Floors | Joists, rim tracks, web stiffeners, bridging, deck | Steel deck with concrete topping, or boards, for stiffness and acoustics |
| Roofs | Trusses, rafters, battens, ties, bracing | Trusses tied down to walls with straps or brackets for wind uplift |
| Stability | Strap bracing, sheathing, hold-downs, anchors | Lateral loads taken to the slab through hold-downs and anchors |
| Envelope | Boards, insulation, membranes, cladding | Fire, acoustic and thermal ratings from tested assemblies |
Especificações
What we supply
- Members
- C studs, tracks, joists, trusses, battens – cut to length, punched and labelled
- Prefabrication
- Loose members, wall panels, floor cassettes, roof trusses, volumetric modules
- Steel
- G550 / G450 / G300, ST33H / ST50H, S350GD – S550GD; Z275, AZ150, ZM coatings
- Engineering
- Member and connection design to AISI S100 / S240, AS/NZS 4600 / NASH, EN 1993-1-3
- Connections
- Screws, straps, hold-downs and anchors to the slab
- With the steel
- Primary steel, floor decking, mezzanines, roofing and cladding in one package
- Documents
- BIM model, shop drawings, panel layouts, assembly manual, packing lists
Processo
How an LGS project is delivered
- 1
Design
Architecture, loads and fire / acoustic requirements.
- 2
BIM model
Every member, opening and service hole in 3D.
- 3
Roll-forming
CNC roll-formed, cut, punched and labelled.
- 4
Panels
Walls, cassettes and trusses assembled on jigs.
- 5
Packing
Bundled by floor and panel for export.
- 6
Erection
Anchored, stood, braced and checked on site.
Condições de entrega · Incoterms® 2020
Entregue nas condições que você precisa
A World Steel cota na fábrica, FOB ou entregue no seu porto ou obra. Embalagem de exportação, documentos e embarque a partir de Ho Chi Minh fazem parte do serviço.
Comparar os Incoterms® 2020 →FCAFree CarrierFOBFree On BoardCFRCost and FreightCIFCost, Insurance and FreightCPTCarriage Paid ToCIPCarriage and Insurance Paid To
Também por projeto ou sob consulta: EXW · FAS · DAP · DPU · DDP
FAQ
Perguntas frequentes
What is light gauge steel framing (khung thép nhẹ)?
A building frame made of thin cold-formed steel sections – C studs, U tracks, joists, trusses and battens – usually 0.75 to 2.4 mm thick, screwed together into walls, floors and roofs.
How tall can an LGS building be?
Load-bearing LGS is common up to about six storeys, often on a concrete podium; higher buildings use LGS for infill walls and partitions inside a steel or concrete frame. The limit depends on loads, wind, seismic zone and local code.
Does LGS rust?
Members are protected by Z275 galvanised or AZ150 zinc-aluminium coatings and sit inside the building envelope. Heavier coatings, stainless fasteners and good detailing are used near the coast and in wet areas.
Is an LGS building fire resistant?
Steel does not burn, but thin sections lose strength in fire. Fire resistance comes from tested wall and floor assemblies – typically fire-rated gypsum or fibre-cement boards with mineral wool.
How does LGS compare with concrete for a house?
The frame is much lighter, dry and quick to erect, with precise dimensions and less waste. Concrete gives more thermal mass and is familiar to local trades; the right choice depends on site, speed and budget.
Can I order loose members or only complete kits?
Both – loose members cut and punched to a drawing, prefabricated wall panels, floor cassettes and trusses, or a complete building kit with drawings and assembly instructions.
Conteúdo relacionado
Produtos de aço
Planning a light gauge steel project?
Send the drawings, location and number of storeys – we return the framing concept, member schedule and a supply price for members, panels or a complete kit.