{"id":389,"date":"2026-09-07T23:07:45","date_gmt":"2026-09-07T15:07:45","guid":{"rendered":"http:\/\/www.kitchenmagics.com\/blog\/?p=389"},"modified":"2026-09-07T23:07:45","modified_gmt":"2026-09-07T15:07:45","slug":"what-are-the-common-sizes-of-aluminium-spacer-bars-4cf0-1d926e","status":"publish","type":"post","link":"http:\/\/www.kitchenmagics.com\/blog\/2026\/09\/07\/what-are-the-common-sizes-of-aluminium-spacer-bars-4cf0-1d926e\/","title":{"rendered":"What are the common sizes of Aluminium Spacer Bars?"},"content":{"rendered":"

Hey there! I\u2019m an aluminium spacer bar supplier, and today I wanna chat about the common sizes of aluminium spacer bars. These little guys play a huge role in the construction and window – making industries, so it\u2019s super important to know what sizes are out there. Aluminium Spacer Bar<\/a><\/p>\n

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Let\u2019s start with the basics. Aluminium spacer bars are used in insulating glass units (IGUs). They separate the panes of glass, creating a space that can be filled with air or an insulating gas like argon. This helps to improve the energy efficiency of windows and doors.<\/p>\n

Standard Widths<\/h3>\n

One of the most common measurements we look at is the width of the spacer bar. The width determines the thickness of the insulating gap between the glass panes.<\/p>\n

The 6mm width is quite popular. It\u2019s often used in situations where space is a bit tight, or when you don\u2019t need a super – high level of insulation. For example, in some older buildings that are being renovated on a budget, 6mm spacer bars can be a good choice. They still offer some insulation benefits and are relatively inexpensive compared to wider options.<\/p>\n

Then there\u2019s the 9mm width. This is a middle – ground choice. It provides better insulation than the 6mm bars and is suitable for a wide range of residential and commercial applications. Many standard new – build houses use 9mm aluminium spacer bars in their windows. It gives a good balance between cost and energy efficiency.<\/p>\n

The 12mm width is another common one. It\u2019s widely used in modern construction, especially in areas where energy efficiency is a top priority. Areas with extreme climates, either very cold or very hot, often opt for 12mm spacer bars. They create a larger gap for the insulating gas, which can significantly reduce heat transfer through the windows.<\/p>\n

Some projects even go for wider spacer bars, like 16mm or 18mm. These are usually used in high – end buildings, such as luxury homes or commercial skyscrapers, where the focus is on achieving the highest possible energy efficiency ratings.<\/p>\n

Lengths<\/h3>\n

When it comes to lengths, aluminium spacer bars are typically available in standard lengths. The most common length is 3000mm (or 3 meters). This length is convenient because it can be easily cut down to fit different window sizes. It\u2019s also a manageable size for transportation and storage.<\/p>\n

However, we also supply custom – cut lengths. If you\u2019re working on a project with non – standard window sizes, you can tell us the exact lengths you need, and we\u2019ll cut the bars for you. This service has been a real lifesaver for many of our customers, especially those working on unique architectural designs.<\/p>\n

Thickness<\/h3>\n

The thickness of the aluminium spacer bar is also an important factor. The most common thicknesses are 0.3mm, 0.4mm, and 0.5mm.<\/p>\n

A 0.3mm thick spacer bar is lightweight and cost – effective. It\u2019s suitable for smaller windows or applications where the structural demands are not very high. It\u2019s often used in domestic windows in areas with mild weather conditions.<\/p>\n

The 0.4mm thickness is a more general – purpose option. It offers a good balance between strength and cost. Many standard commercial and residential window projects use 0.4mm thick aluminium spacer bars. They can withstand normal wind and pressure loads without being too heavy or expensive.<\/p>\n

The 0.5mm thick spacer bar is the sturdiest of the three. It\u2019s used in large – scale projects, such as high – rise buildings or industrial buildings. These bars can handle high wind pressures and are more durable over time, which is crucial for long – term performance.<\/p>\n

U – shaped and L – shaped Bars<\/h3>\n

In addition to different sizes in terms of width, length, and thickness, we also have different shapes of aluminium spacer bars. The most common ones are U – shaped and L – shaped.<\/p>\n

U – shaped bars are used to create a complete frame around the glass panes. They are straightforward to install and are suitable for most standard window designs. Just place the U – shaped bar around the edges of the glass, seal it up, and you\u2019re good to go.<\/p>\n

L – shaped bars, on the other hand, are often used in corner joints. They provide a more flexible solution when you need to create custom – shaped windows or when you\u2019re dealing with special construction requirements.<\/p>\n

Why Choose Our Aluminium Spacer Bars?<\/h3>\n

Now, you might be wondering why you should choose our aluminium spacer bars. Well, first of all, we offer a wide range of sizes. Whether you need a standard 9mm width, 3 – meter length bar or a custom – cut, 18mm wide, 0.5mm thick one, we\u2019ve got you covered.<\/p>\n

Our bars are made from high – quality aluminium. This means they are corrosion – resistant, which is super important for long – term durability, especially in areas with high humidity or near the coast. Plus, aluminium is a lightweight material, which makes it easier to handle during the installation process.<\/p>\n

We also have a great team of customer service representatives. If you have any questions about the sizes or need help choosing the right one for your project, just give us a shout. We\u2019re here to make your life easier.<\/p>\n

Time to Get in Touch<\/h3>\n

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If you\u2019re in the market for aluminium spacer bars, I hope this blog has given you a good understanding of the common sizes. Whether you\u2019re a window manufacturer, a construction contractor, or a DIY enthusiast, we can provide the perfect aluminium spacer bars for your project.<\/p>\n

Machine Fill Molecular Sieve<\/a> Don\u2019t hesitate to reach out to us if you have any questions or if you\u2019re ready to place an order. We\u2019re always excited to work with new customers and help you create energy – efficient and high – quality windows and doors. So, drop us a message and let\u2019s start this project together!<\/p>\n

References<\/h3>\n