General Comparison Table
| Criterion | Light Steel | Reinforced Concrete |
|---|---|---|
| Construction time (150 m²) | 60 – 90 days | 12 – 18 months |
| Turnkey price per m² | 22,000 – 29,000 TL | 30,000 – 45,000 TL |
| Structural weight | ~35 kg/m² | ~350 kg/m² |
| Earthquake force (same soil) | 10x lower | High |
| Thermal insulation | Superior (mineral wool) | Requires additional application |
| Moisture/fire resistance | Depends on detailing | Better |
| Adding a floor / renovation | Easy | Requires reinforcement |
| Dry construction (winter) | Yes | Limited |
| Structural lifespan | 50+ years | 50+ years |
1. Cost
When comparing prices, light steel generally comes out more economical. But the real difference lies in the hidden costs:
- Rent cost: While reinforced concrete takes 12-18 months, you keep paying rent. Light steel is delivered in 3-5 months → at least 9 months of rent savings.
- Loan interest: The longer a construction loan stays open, the more interest accrues.
- Labor: Light steel is manufactured in the factory; only assembly happens on site. With reinforced concrete, all production happens on site — more workers, more risk.
If you pay 15,000 TL/month in rent while waiting 12 months for a 150 m² reinforced concrete home, that is an extra 180,000 TL. Light steel is delivered in 3 months → 135,000 TL rent savings. Divided by area, that is a 900 TL/m² advantage from rent alone.
2. Earthquake Performance
Since Turkey sits in an active earthquake zone, this criterion is decisive.
Earthquake force is directly proportional to the weight of the structure. A light steel structure is roughly 10 times lighter than reinforced concrete. This difference affects the entire system, from the foundation to the load-bearing elements, and means much lower earthquake forces under the same soil conditions. Light steel structures also have high ductility — the cladding system absorbs the earthquake energy without large deformations.
The 2026 Light Steel Regulation is fully integrated with TBDY 2018. Light steel structures designed in compliance with the regulation are treated as equivalent to reinforced concrete during the permit process — the claim that "light steel can't get a permit" is no longer valid.
3. Construction Time
Light steel profiles are manufactured from coil using cold-forming machines, cut and numbered. On site, they are assembled like a kit. There is no pouring concrete, waiting for curing, or removing formwork.
| Phase | Light Steel | Reinforced Concrete |
|---|---|---|
| Project + permit | 3 – 4 weeks | 3 – 4 weeks |
| Foundation | 1 – 2 weeks | 2 – 4 weeks |
| Structural frame | 1 – 2 weeks | 8 – 14 weeks |
| Roof + cladding | 2 – 3 weeks | 3 – 5 weeks |
| Interior works | 4 – 6 weeks | 8 – 14 weeks |
| Total | 2.5 – 4 months | 12 – 18 months |
4. Thermal and Acoustic Insulation
Since the light steel wall section is designed in the factory, insulation is directly integrated into the profile. A typical exterior wall section:
- Exterior: External cladding (Cembrit, siding, or render)
- Structural panel: 12mm OSB
- Between steel studs: 100mm mineral wool (0.035 W/mK)
- Vapor barrier
- Interior: 12.5mm drywall
This section achieves a U value of ~0.25 W/m²K, meeting the new TS 825 energy performance certificate requirements without any additional application. With reinforced concrete, achieving the same U value requires additional external or internal insulation.
5. Moisture and Fire
In this area, reinforced concrete has the advantage — concrete is inherently resistant to moisture and fire. In light steel structures, these risks are managed through correct detailing:
- Moisture: Z275 galvanized coating, proper ventilation gaps and a vapor barrier minimize the risk of corrosion. The critical point: correct membrane application is essential in continuously damp environments (basement, bathroom).
- Fire: Under Article 9 of the 2026 Regulation, fire calculation is mandatory. Critical temperature is calculated per EN 1993-1-2, determining the required drywall thickness. Two layers of 12.5mm fire-resistant drywall achieve REI 60.
6. Flexibility and the Future
In a reinforced concrete structure, opening a door, demolishing a wall, or adding a floor later requires serious engineering intervention. In a light steel structure:
- Partition walls can be moved easily
- Adding a floor is calculated against the existing foundation but is much easier
- Accessing the inside of walls for utility changes is simple
- The structure can be disassembled and rebuilt elsewhere (steel is recyclable)
7. Which System for Which Situation?
| Situation | Recommended System | Why |
|---|---|---|
| Fast delivery required (3-5 months) | Light Steel | Reinforced concrete cannot be completed in this time |
| Limited budget, paying rent | Light Steel | Lower total cost |
| 1st or 2nd degree earthquake zone | Light Steel | 10x lower earthquake force |
| Building with more than 5 floors | Reinforced Concrete / Steel Frame | Light steel is generally suited up to 3 floors |
| Ground with constant water contact (basement) | Reinforced Concrete (lower floor) | Concrete is more durable against constant moisture |
| Industrial warehouse or factory | Steel frame or prefabricated | Large spans require a different system |
For the Tekirdağ and Thrace region, we mostly recommend light steel. The region is seismically active, land prices are high, and construction time directly affects rent cost. The one exception: if a basement is planned on sloped land, a hybrid solution with reinforced concrete on the lower floor and light steel above can make sense.
Frequently Asked Questions
What is the lifespan of a light steel home?
With correct detailing and ventilation, Z275 galvanized profiles have a lifespan of 50 years or more. For stainless steel screws, the theoretical lifespan is far beyond that. There is no difference in lifespan compared to reinforced concrete.
How good is light steel against sound?
With mineral wool infill and double-layer drywall, an acoustic insulation value of Rw 45-50 dB is achieved — equivalent to most reinforced concrete partition walls. The critical point is using elastic bands between the profile and drywall, otherwise vibration transmission increases.
Can you get a building permit?
Yes. Since the 2026 Light Steel Regulation is in force, a building permit can now be obtained with an engineering report signed by a licensed engineer. MefSteel prepares the regulation-compliant report for all its projects and supports the permit process.
Which system fits your project better? Call 0553 543 02 12, tell us about your land and budget — we'll give you a tailored assessment. We offer free site visits in Tekirdağ and nearby provinces.