Accurate preparation
A digital model links profiles to panels and drawings, supporting quantity control, manufacturing sequences and assembly.
TOROFORTH
LGS construction
LGS uses cold-formed light steel profiles. The design brings the structure, envelope, services and finishes together as a complete building system.
LGS / CFS
How the system works
LGS (Light Gauge Steel), also called CFS (Cold Formed Steel), uses thin-walled steel sections formed without hot rolling. Load-bearing walls contain closely spaced studs; floors and roofs use engineered joists or trusses. C-sections commonly carry loads while U-tracks locate and connect panel members.
The shape and arrangement of the sections create a lightweight structural system. Its capacity depends on the design of the whole frame, including bracing, connections and foundations. This differs from a heavy steel skeleton with large rolled beams. Wider openings or spans may call for a designed combination of systems.
An LGS wall is more than its steel frame. Insulation, airtightness, moisture control, protective boards and the façade work together to create a comfortable interior. A coordinated architectural, structural and services design connects factory preparation with careful site assembly.
Why choose LGS construction?
Lower structural weight
Thin-walled sections provide a light frame that can simplify handling and transport. Extensions still require checks of the existing building and foundations.
Organised dry assembly
Elements can be prepared in advance and connected on site to an agreed sequence. The amount of wet work depends on the floor and foundation system.
Contemporary design freedom
L and U plans, courtyards, recessed terraces, balconies and flat or pitched roofs can be developed within an engineered structural system.
Material control
Lists of profiles and fixings support purchasing and comparison of planned and actual quantities. Agreeing changes before manufacture improves coordination.
Coordinated layers
Structure, thermal protection, acoustics and appearance have different roles. Steel can be recycled; overall environmental performance also depends on its source, other materials, transport and service life.
What needs careful design
Thermal bridges and moisture
Steel conducts heat well. Continuous external insulation, junction design and a sealed air-control layer help manage heat loss and condensation.
Sound and fire
Performance belongs to the complete assembly, including boards, insulation, joints and penetrations. Non-combustible steel alone does not establish a wall’s fire resistance.
Stability and connections
Bracing, anchors, lintels, load transfer and erection sequence are part of the design. Structural members and service holes must not be changed arbitrarily on site.
LGS / 3D
What sits between the external and internal finish?
Explore how steel framing, insulation and linings form a wall, floor and roof. Each layer has a specific role.
Layers and connections
Keep exploring
GuidesGuides / 05
Insulation and thermal bridges
Insulation between steel members is only one part of a wall’s thermal performance.
Read guide ↗Guides / 06
Moisture, condensation and airtightness
Rainwater, water vapour and air leakage need different, coordinated control layers.
Read guide ↗
Guides / 07
Acoustics of lightweight walls and floors
Sound comfort comes from mass, absorbent infill, separation and careful junctions.
Read guide ↗TOROFORTH
Let’s talk about your space.
Send us the model you like, the location and your main requirements. Together we define the next steps and the scope of a quotation.