When it comes to choosing roller shutters for your home, most people focus on the basics – colour, price, and maybe automation. But one factor that makes a big difference in performance, especially in coastal and windy areas like the Central Coast, is the size of the shutter profile.
If you’ve never thought about the difference between a 42mm and 55mm roller shutter, you’re not alone. But as we’ve seen with many local customers, that small difference can have a big impact on noise, strength, and overall satisfaction.
Why Profile Size Matters
The profile is the slat or curtain that rolls up into the shutter box. It’s what gives your roller shutter its structure and strength. Two of the most common sizes in the Australian market are 42mm and 55mm, and while they may seem similar at first glance, there’s a clear winner when it comes to performance, especially in harsher environments.
If you’re starting your search for roller shutters Central Coast, understanding the difference between profiles is a great first step.
1. Strength and Wind Resistance
On the Central Coast, it’s not unusual to deal with strong coastal winds. A 55mm roller shutter offers more durability and better wind resistance than its smaller 42mm counterpart. The added size gives the shutter a more solid feel, which means less flexing, less movement, and less chance of rattling in the wind.
We recently had a homeowner reach out after struggling with 42mm shutters installed by another company. They were experiencing severe rippling and rattling due to the shutter being too light and loose for their window size and the local conditions. After multiple repairs, they were still unhappy with the results, proof that sometimes a cheaper option costs you more in the long run.
2. Noise Reduction and Insulation
A larger shutter profile doesn’t just hold up better to wind, it also performs better in reducing outside noise and maintaining indoor temperatures. This makes 55mm shutters a smart choice for families living near busy roads, beach areas with strong breezes, or homes exposed to the elements.
3. Appearance and Fit
While performance is key, appearance matters too. A 55mm shutter tends to look more solid and premium. It sits more snugly within the window frame and is less prone to rippling, sagging, or warping over time.
In contrast, a 42mm shutter may suit smaller windows or protected areas, but it can look flimsy or out of place on larger spans, particularly over 3 or 4 metres wide. If you’ve got big windows or sliding doors, stepping up in size gives you better coverage and a cleaner finish.
4. Security and Locking
For homeowners wanting peace of mind, the 55mm profile offers improved security. Its sturdier build can support better locking mechanisms and adds another layer of defence against forced entry. Especially for homes in Sydney or the Central Coast, where street exposure is high, it’s a worthwhile investment.
But Isn’t the 42mm Cheaper?
Yes, the 42mm shutter is often marketed as a cheaper solution, and in some cases, that might be all that’s needed. However, we always encourage homeowners to consider the long-term benefits. The added strength, performance, and peace of mind that comes with a 55mm shutter often outweigh the initial cost savings.
Plus, when you factor in ongoing maintenance and potential repairs, going with the stronger product up front can actually save you money over time.
What Should Central Coast Homeowners Look For?
When shopping around for roller shutters, it’s easy to assume all products are created equal. But as we’ve seen in our own service areas across Sydney and the Central Coast, there’s a wide range of quality on offer.
Here’s what to ask when comparing products:
- What size/profile is the roller shutter?
- Is it rated for high wind or coastal conditions?
- Does it offer insulation and noise reduction?
- What locking or security features does it include?
- Is it suitable for larger windows or doors?
The Bottom Line
If you’re living in a windy coastal area like the Central Coast or parts of Sydney, a 55mm roller shutter is often the better long-term choice. It’s stronger, quieter, more secure, and simply performs better where it counts.
Choosing roller shutters is about more than just ticking a box. Think of them as an investment in comfort, safety, and the overall look of your home.
If you’re unsure what size or style would work best for your windows, we’re happy to help you compare your options and find the right fit, without the jargon or pressure.