LGSF steel structure
Technology

Light steel. Precise manufacturing.
The future of construction.

LGSF (Light Gauge Steel Frame) is a modern construction technology utilizing light gauge galvanized steel profiles. Build faster, more precisely, and sustainably.

What is LGSF technology?

LGSF (Light Gauge Steel Frame) is a structural system using light gauge galvanized steel profiles with thicknesses of 0.75–2.5 mm. The profiles are CNC cut with ±1 mm accuracy and assembled into prefabricated panels — wall, roof, and floor — which form the building’s load-bearing structure.

Unlike traditional masonry, it is so-called dry construction methods — without wet processes, without waiting for drying. This significantly shortens construction time and eliminates moisture-related issues.

The technology is widespread worldwide — from Australia through Europe to North America. In the EU it is regulated by ETAG 018 standards and ETA and CE Mark certifications.

Detail of LGSF steel construction
Faster than
traditional masonry
±1 mm
CNC precision
manufacturing
2 %
Construction waste
(vs. 20% wood)
100 %
Recyclable
steel
50+
Service life
assemblies

Why build with light steel?

LGSF technology offers a range of advantages over traditional construction methods. From speed and precision to sustainability.

Construction speed

Dry construction methods are up to 3× faster than traditional masonry. Prefabricated panels are ready for on-site assembly — no wet processes, no drying time.

🎯

±1 mm precision

CNC-cut profiles ensure consistent dimensional accuracy. Minimal on-site adjustments, perfect element connections, maximum structural cleanliness.

🔥

Fire resistance REI 60

Certified wall assemblies achieve fire resistance REI 60 (60 minutes). The combination of steel profiles, plasterboard, and mineral wool insulation also meets requirements for residential buildings.

🌡️

Thermal insulation U = 0.15

Wall assemblies achieve thermal transmittance coefficient U = 0.15 W/m²K and better — meeting requirements even for passive houses. Mineral wool Isover + external insulation.

🔊

Acoustics Rw 55–65 dB

Airborne sound insulation of wall assemblies reaches Rw 55–65 dB. The mass-spring-mass principle provides excellent soundproofing even for residential buildings.

♻️

100% recyclable steel

Steel is fully recyclable without quality loss. Construction waste only 2% compared to 20% in timber buildings. Minimal environmental impact.

💪

Strength and durability

High load-bearing capacity at low weight. Resistant to termites, mold, rot, and corrosion due to galvanization. No shrinkage, twisting, or swelling.

📐

Design flexibility

Large spans without columns, complex shapes, open layouts. Architects have freedom in design without the limitations of traditional materials.

💲

Lower overall costs

Faster construction = lower overhead costs. Smaller foundations due to low weight. Less waste, less transport. Overall costs comparable or lower than masonry.

LGSF vs. Brick vs. Wood

Clear comparison of key parameters of the three most common construction technologies in Europe.

LGSFSteel frame
BrickMasonry
WoodTimber construction
Construction speed
▲ Fastest
reference
faster
🎯 Precision
±1 mm
▲ CNC accuracy
±10 mm
manual masonry
±5 mm
carpentry work
Construction waste
2 %
▲ Minimum
15 %
⚠ High
20 %
⚠ Highest
🔥Fire Resistance
REI 60
✓ 60 minutes
REI 90
▲ Best
REI 30
▼ Low
🌡 Thermal insulation (U-value)
0,15
▲ W/m²K
0,25
W/m²K
0,18
W/m²K
Recyclability
100 %
✓ Full
Partial
≈ Limited
Partial
≈ Limited
Service life
50+
years
100+
▲ Longest
30–50
years
🔊 Acoustics (Rw)
55–65 dB
▲ Best
50–55 dB
good
40–50 dB
▼ Weaker
🛡 Mold resistance
✓ Resistant
✓ Resistant
✗ Susceptible
💧 Wet processes
Without
✓ Dry construction methods
Yes
✗ Wet masonry
Without
✓ Dry construction methods
Structural weight
Light
▲ Smaller foundations
Heavy
▼ Massive foundations
Medium
standard

From steel coil to finished panel.

The entire production process is digitally controlled — from design in CAD/BIM software through CNC manufacturing to quality inspection of each piece.

01
💻
CAD/BIM design
Creation of detailed 3D models and construction plans including production documentation.
02
Coil setup
High-strength galvanized steel coils S350GD+Z275 are loaded into the production line.
03
🔨
CNC profiling
Automatic shaping of steel into precise C and U profiles on the CNC roll-forming line.
04
Precision cutting
Accurate cutting to exact lengths, pre-punching holes for installations with ±1 mm precision.
05
Quality control
Thorough inspection of dimensional accuracy and structural integrity of each piece.
06
🏧
Panel assembly
Profiles are assembled into wall, roof, and floor panels ready for dispatch.
CNC production of LGSF profiles

Digitally controlled production

Our automated production line processes steel coils into finished profiles with ±1 mm accuracy. Each profile is CNC cut precisely according to production documentation — no manual intervention, no deviations.

Holes for electrical installations and conduits are pre-prepared directly in production. Profiles are numbered and packed in assembly order — the construction company simply assembles on site according to the plan.

Result: minimal waste (2%), maximum assembly speed, zero deviations.

From family houses to residential complexes.

LGSF technology is versatile — suitable for individual projects and serial construction, from tiny homes to six-storey residential buildings.

Growing market.
Proven technology.

The European LGSF market reached USD 6.2 billion in 2023 and is growing at 3.4% annually. The technology is widely established in the UK, Scandinavia, Germany, and increasingly in Central Europe.

The EU regulatory framework supports sustainable construction methods — LGSF with 100% steel recyclability and minimal waste perfectly aligns with the direction of European construction.

Skymax Living is one of the pioneers of LGSF technology in the Czech Republic and Central Europe. Our systems are certified according to European standards and supplied throughout the EU.

$6.2 bn
EU LGSF market (2023)
3,4 %
Annual growth (CAGR)
$9.1 bn
Global market (2025)
13,5 %
Global CAGR

Do you want to build with LGSF?

Send us your inquiry or project documentation. We will prepare a tailor-made solution for you.

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