Aluminium WindowsInso Architectural Solutions

Aluminium window types and sizes guide

By 17th Sep 2021Jan 7th, 2022No Comments
Aluminium window types and sizes guide (1)

There are several styles and designs to choose from when it comes to aluminium windows in South Africa. At Inso, we’re proud to provide something for everyone. Regardless of your architectural preferences and the functional layout of your space, we guarantee you’ll find the right fit with us.

When choosing which window to install, there are a few things you should consider that include:
The size of the space you’re installing them into
The colour you’d prefer that matches your aesthetic
The design the works best with your layout, airflow needs and architectural style

Here are the top 3 most on-trend and really popular aluminium window systems currently on the market:

1. Frameless Aluminium Windows

The most light-optimised windows around, frameless aluminium windows are ideal for installing in open-planned spaces and within those that you’re hoping to make feel more open. Aside from being super clean and minimal in design, frameless windows work to add a contemporary feel to any space and an added benefit is that they’re really easy to install.

2. Top Hung Aluminium Windows

Popular for both commercial and residential spaces, the top hung window system allows for enhanced ventilation and is super sleek in its design. These windows are hinged at the top and swing open from the bottom. What makes these windows so popular? They’re fully customisable to suit your specific needs and preferences.

3. Side Hung Aluminium Windows

Bearing its hinge on the side, the side hung aluminium window system can open inwards and outwards. This unique function makes it really versatile and therefore incredibly popular for installation in commercial and residential spaces alike. It is sleek and modern in its design, making it a popular choice across aesthetics and style preferences.

Standard Aluminium Window Types and Sizes

Standard aluminium window types and sizes

Renovating and customising residential bathrooms and water closets has become a really trendy thing to do in recent years. That being said, it’s expected that custom window sizes would be more appropriate within these spaces. However, if you’re bringing new life into an outdated bathroom, you’re likely going to be replacing a standard sized window. The following two sizes are the most common for bathroom windows:

Standard bathroom window

Height 30.5cm – 2.4m
Width 61cm – 2.4m

Standard sliding bathroom window

Height 61cm – 1.5m
Width 0.9m – 2.1m

Standard Kitchen Window Sizes

Kitchens come in many different layouts these days. Depending on your layout and budget, you’ll likely choose one of the following three standard window sizes:

Standard double-hung kitchen window

Height 0.9m – 1.8m
Width 61cm – 1.2m

Standard casement kitchen window

Height 43cm – 1.9m
Width 35.5cm – 0.9m

Standard kitchen window

Height 30.5cm – 2.4m
Width 61cm – 2.4m

Standard Bedroom Window Sizes

Different bedrooms have different uses and therefore, require different finishes. For example, a main bedroom may be larger than say a guest or child’s bedroom. And thus, it’ll need larger windows. It may also have more of a view than the other bedrooms in the house, meaning it will require a clear, obstruction-free window. The standard sizes for bedroom-worthy windows are as follows:

Standard double-hung bedroom window

Height 90cm to 1.8m
Width 60cm to 1.2m

Standard casement bedroom window

Height 53cm to 75cm
Width 88cm to 1.2m

Aluminium Window Colours and Finishes

Aluminium window colours and finishes

Aluminium windows have become the preferred window choice over the last decade because of how durable and long-lasting they are known to be. In addition, aluminium windows are flexible in both system design and aesthetics. All of our Inso Aluminium windows are available in a collection of colors and finishes, making them ideal for upgrading any space.

How Do I Choose Aluminum Windows?

It’s super easy to get carried away when renovating or upgrading your space. And although keeping up appearances by refreshing your home with the latest looks is important, it’s even more crucial that you install features that are right for your space. But how do you decide what’s right? Ask the following questions to get you started:

  1. How big is your space?
  2. What are the accent colours in your space?
  3. Which wall will feature the window?
  4. Do you want this window to increase the security of your home?
  5. What is your budget?
  6. Do you have any technical or hardware preferences?


Aluminium windows are available in all shapes and sizes. So when you’re deciding which to commit to, it’s important to know exactly what you’re getting. At Inso, our team of experts are equipped to help you choose an aluminium window that will not only fit your space in size and aesthetic, but fit your budget too. Contact us today for a quote to get your project started.

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Aluminium Windows and Doors
Mike Moore

Mike Moore

Mike Moore is a Director at Inso Architectural Solutions