Corrugated Steel Sheets are among the most widely used materials in the field of steel structures and industrial buildings in Turkey. Thanks to their high strength, lightweight nature, ease of installation, and economical cost, they have become a preferred choice for many construction projects.
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In this article, we discuss what corrugated steel sheets are, their main applications, how they are manufactured, and the key differences between them and sandwich panels.
What Are Corrugated Steel Sheets?
Corrugated steel sheets are flat steel sheets that are formed into regular wave-like profiles through a rolling process. These corrugations significantly increase the sheet’s load-bearing capacity and resistance to wind pressure compared to flat sheets.
They are typically manufactured from:
- Galvanized steel
- Pre-painted steel (PPGI)
- Aluminum or zinc-aluminum coated steel (depending on project requirements)
Applications of Corrugated Steel Sheets
Corrugated steel sheets are widely used in various sectors, including:
- Roofing of factories and industrial buildings
- Side cladding for steel structures
- Warehouses and storage facilities
- Agricultural buildings and barns
- Hangars and shelters
- Canopies and parking shades
- Temporary buildings and construction sites
They are an ideal solution for projects that require fast installation and low construction costs.
How Are Corrugated Steel Sheets Manufactured?
The manufacturing process of corrugated steel sheets involves several key stages:
- Raw Material Selection
Steel coils with different thicknesses are selected according to structural and project requirements. - Cutting and Preparation
The steel coils are cut into sheets of the required lengths. - Corrugation / Roll Forming
The sheets pass through specialized roll-forming machines to create uniform corrugated profiles. - Surface Protection and Coating
Sheets are galvanized or painted to protect them against corrosion, especially in humid or coastal environments. - Quality Control and Packaging
Final inspection is carried out before packaging and delivery to the project site.
Difference Between Corrugated Steel Sheets and Sandwich Panels
Although both materials are commonly used in steel structures, there are significant differences between them:
| Feature | Corrugated Steel Sheets | Sandwich Panels |
| Thermal Insulation | Low or none | High |
| Sound Insulation | Limited | Excellent |
| Weight | Very lightweight | Heavier |
| Cost | Economical | Higher cost |
| Installation Speed | Fast | Fast |
| Typical Use | Open or simple structures | Insulated and enclosed buildings |
When Should You Choose Corrugated Steel Sheets?
- When thermal insulation is not required
- For open warehouses and simple steel structures
- When minimizing overall project cost is a priority
When Are Sandwich Panels a Better Choice?
- For insulated industrial buildings
- Cold storage facilities and food processing plants
- Offices and buildings requiring thermal comfort
Corrugated steel sheets represent a practical and efficient solution for many steel structure projects in Turkey, especially when cost efficiency, speed of construction, and structural flexibility are key considerations. However, for projects that demand high thermal and acoustic insulation, sandwich panels remain the optimal solution.
Choosing the right cladding material always depends on the project’s function, budget, and insulation requirements.