Walk down any commercial street in Malaysia and you will see both types in use. Aluminium roller shutters are commonly installed on shopfronts, while steel shutters are widely used in warehouses and industrial buildings.
Both materials provide protection, but the choice between aluminium and steel affects weight, durability, corrosion resistance, security, and long-term performance in Malaysia’s hot and humid climate.
This guide compares both materials in detail so you can choose the most suitable option for your property.
Quick Answer
For most shopfronts, offices, and residential properties in Malaysia, aluminium roller shutters are the preferred choice. They are lightweight, corrosion-resistant, and perform well in humid and coastal environments.
For warehouses, factories, and high-security applications, galvanised or Zincalume steel shutters are more suitable due to their higher strength and ability to support larger openings.
Aluminium Roller Shutters
Aluminium roller shutters are typically manufactured using extruded aluminium slats, commonly alloy grade AA6063-T5. This material offers a strong balance between structural strength and corrosion resistance.
The slats interlock to form a curtain that rolls into a compact coil above the opening.
Typical specifications:
- Alloy: AA6063-T5
- Slat thickness: 1.0mm to 2.0mm
- Manual width: up to approximately 3 to 4 metres
- Motorised width: up to approximately 6.5 metres
- Finish: anodised or powder-coated
Aluminium naturally forms a protective oxide layer, making it highly resistant to rust. This makes it especially suitable for Malaysia’s humid and coastal environments.
Steel Roller Shutters
Steel roller shutters are made from cold-rolled steel, typically galvanised or coated with Zincalume for improved corrosion resistance.
They are heavier and stronger than aluminium, making them suitable for industrial use and high-security applications.
Typical specifications:
- Material: galvanised steel or Zincalume
- Light-duty slats: 0.5mm to 0.6mm
- Heavy-duty slats: 0.8mm to 1.2mm or higher
- Motorised width: can exceed 10 to 12 metres with proper design
- Finish: GI, Zincalume, or powder coating
Steel provides better resistance to impact and forced entry, especially at higher thickness levels.
Why Malaysia’s Climate Matters
Malaysia’s climate plays a major role in material selection. High humidity, frequent rainfall, and coastal salt exposure can accelerate corrosion on untreated metal surfaces.
In many cases, standard galvanised steel shutters begin to show signs of rust within a few years if not properly maintained, especially in coastal areas such as Penang or Johor.
Aluminium, on the other hand, does not rust and requires minimal maintenance, which is why it has become the dominant choice for shopfronts and commercial properties in Malaysia.
Aluminium vs Steel: Key Differences
Aluminium Roller Shutter
Advantages
- Naturally resistant to rust and corrosion
- Lightweight and easier to operate manually
- Suitable for humid and coastal environments
- Cleaner and more modern appearance
- Lower maintenance requirements
Limitations
- Lower impact resistance compared to heavy steel
- Not ideal for high-security industrial use
Steel Roller Shutter
Advantages
- Higher strength and impact resistance
- Suitable for large openings and heavy-duty use
- Better for high-security applications
- More cost-effective for light-duty options
Limitations
- Prone to rust without proper coating or maintenance
- Heavier and usually requires motorisation
- Requires periodic inspection and repainting
Full Specification Comparison
| Factor | Aluminium Roller Shutter | Galvanised Steel Roller Shutter |
|---|---|---|
| Material weight | Light, approx. 2.7 g/cm³ | Heavy, approx. 7.85 g/cm³ |
| Corrosion resistance | Excellent, naturally rust-resistant | Moderate, depends on coating quality |
| Security / impact strength | Good for commercial use | Higher strength, especially at thicker gauges |
| Slat thickness | 1.0mm to 2.0mm | 0.5mm to 1.2mm (up to 2.0mm heavy duty) |
| Max opening (motorised) | Up to approx. 6,500mm | Can exceed 10,000mm with proper design |
| Manual operation | Easy due to lightweight curtain | Difficult for larger sizes due to weight |
| Finish options | Anodised, powder coating, wide colour range | GI, Zincalume, powder coating (limited colours) |
| Fire resistance | Lower heat resistance, not fire-rated | Suitable for fire-rated systems (with certification) |
| Noise level | Quieter operation | Slightly louder due to heavier slats |
| Maintenance | Low, no rust treatment required | Moderate, requires rust inspection and maintenance |
| Lifespan | 15 to 20 years with proper care | 10 to 15 years, shorter in coastal areas without treatment |
| Cost | RM 500 to RM 1,200 per metre | RM 400 to RM 800 per metre |
| Best use | Shopfronts, homes, coastal locations | Warehouses, factories, high-security use |
Cost Comparison in Malaysia (2026)
Pricing depends on material, thickness, and installation complexity.
Aluminium roller shutters
RM 500 to RM 800 per metre for light-duty
RM 800 to RM 1,200 per metre for heavier profiles
Steel roller shutters
RM 400 to RM 600 per metre for light-duty
RM 700 to RM 1,200 per metre for heavy-duty
Motorisation typically adds RM 800 to RM 2,000, depending on the motor and size.
For a full breakdown, refer to our guide on roller shutter cost in Malaysia.
Total Cost of Ownership
While steel shutters may have a lower upfront cost, aluminium shutters often offer better long-term value in Malaysia.
Aluminium does not require rust treatment or repainting, while steel shutters may need maintenance or replacement over time, especially in humid or coastal environments.
Which Material Is Best for Different Applications?
Choose Aluminium Roller Shutters
Aluminium roller shutters are ideal for shopfronts and retail outlets where appearance matters. They offer a clean, modern look and maintain their finish without rusting, even in humid environments.
They are also the preferred option for coastal or waterfront properties, including areas like Penang, Port Klang, and Johor Bahru, where salt air can accelerate corrosion on untreated steel.
For residential garages and homes, aluminium provides smooth operation, low maintenance, and a more refined finish. It is also suitable for food premises and commercial kitchens, as it does not rust when exposed to moisture.
Choose Steel Roller Shutters
Steel roller shutters are better suited for warehouses and logistics facilities, where large openings and high durability are required. They provide stronger resistance against forced entry and can span wider areas more effectively.
They are also recommended for industrial factories, engineering workshops, and high-impact environments, where heavy usage and potential physical impact demand stronger materials.
For high-security applications, steel offers a more robust barrier and stronger visual deterrent. It is also the preferred option for very large openings above 7 to 8 metres, where structural strength is critical.
What About Fire-Rated Shutters?
If your project requires a fire-rated roller shutter, steel is the only suitable material. These systems are manufactured using specially designed steel curtains and must comply with Malaysian Standard MS 1073 and be certified by Fire and Rescue Department of Malaysia.
Aluminium is not suitable for fire-rated applications, as it cannot meet the required fire resistance standards.
Can Steel Be Used for Shopfronts?
Yes, steel roller shutters can be used for shopfronts, and they are still found in older commercial buildings across Malaysia.
However, compared to aluminium, steel shutters are heavier, noisier during operation, and require more maintenance to maintain their appearance. For this reason, aluminium has become the preferred choice for modern shopfront installations.
Is Zincalume Steel a Better Option?
Zincalume steel is an improved version of standard galvanised steel, using an aluminium-zinc coating that provides significantly better corrosion resistance.
It is a practical choice for industrial applications where steel is required but additional protection against humidity is needed. For Malaysian conditions, Zincalume AZ150 grade is commonly recommended, especially in coastal or high-humidity areas.
Still Not Sure? Ask These Key Questions
If you are unsure which material to choose, consider the following:
- Is your property located in a coastal or high-humidity area?
Aluminium or Zincalume steel is more suitable - Is your opening wider than 7 metres?
Steel is generally more effective for large spans - Is appearance important for your business or shopfront?
Aluminium offers better design flexibility - Is maximum security your top priority?
Heavy-duty steel provides stronger resistance
If you are still unsure, a proper site assessment is the best way to determine the right solution. GR Doors has experience installing roller shutters across Malaysia, from shoplots to industrial facilities, and can recommend a system based on your actual requirements.
Frequently Asked Questions (FAQs)
Which lasts longer in Malaysia: aluminium or steel roller shutters?
Aluminium usually lasts longer in Malaysia because it does not rust. Steel shutters can still last many years, but they may need maintenance or replacement earlier, especially in humid or coastal areas.
Is aluminium strong enough for warehouses or factories?
Aluminium is suitable for light to moderate use, such as shopfronts or small warehouses. For heavy-duty environments or high-impact areas, steel is generally the better choice.
Can steel roller shutters rust in Malaysia?
Yes, steel roller shutters can rust over time, especially in humid or coastal environments. Galvanised or Zincalume coatings help slow down corrosion, but they do not eliminate it completely. Regular inspection and maintenance are important to extend the lifespan of steel shutters.
Are aluminium roller shutters more expensive than steel?
Aluminium usually costs more upfront than light-duty steel. However, it often saves money in the long run because it requires less maintenance.
Which material is better for coastal areas in Malaysia?
Aluminium is the better option for coastal areas because it does not rust when exposed to salt air. Steel can be used, but it needs better coating and maintenance.
Can aluminium roller shutters dent easily?
Aluminium is softer than steel, so it can dent under strong impact. For areas with heavy use or risk of impact, thicker aluminium or steel is more suitable.
What is the difference between galvanised steel and Zincalume?
Galvanised steel is coated with zinc for basic protection. Zincalume has an aluminium-zinc coating, which provides better corrosion resistance and lasts longer in Malaysia.
Can aluminium and steel be used together in one shutter system?
Yes, aluminium and steel are often used together in the same shutter system, such as aluminium slats with steel guide rails. However, the design and installation must prevent galvanic corrosion, which can occur when different metals are in contact in a humid environment. Proper insulation, such as rubber or nylon barriers, is used to separate the materials and prevent this issue.
Do I need steel for fire-rated roller shutters?
Yes, fire-rated roller shutters must be made from steel and meet safety standards. Aluminium is not suitable for fire-rated use.
Final Verdict
Both aluminium and steel roller shutters have their advantages.
For most commercial and residential applications in Malaysia, aluminium is the more practical choice due to its corrosion resistance and low maintenance.
For industrial environments and high-security applications, steel remains the better option due to its strength and durability.
Not Sure Which Roller Shutter Suits Your Property?
Get expert advice from GR Doors. We’ll assess your site, discuss material options, and recommend the most durable and cost-effective solution for your business or home.
Disclaimer
We hope you find this article helpful and informative. Our content is intended for general informational purposes only and does not constitute advice or necessarily reflect the full range of services offered by GR Doors Industries Sdn. Bhd.
For personalized advice, please consult with a professional or contact us directly. While we strive for accuracy and completeness in our blog posts, we cannot guarantee they are error-free. GR Doors Industries Sdn. Bhd. assumes no responsibility for any errors or omissions.