With almost 80 years of experience in the production of premium roof windows, VELUX blends stunning designs with cutting-edge technology and leading manufacturing processes. No matter where you install them, Velux windows give the place a special flair. And it isn’t just aesthetics either, they increase ventilation and allow natural lighting in.
That’s why it is all the more important to find and install Velux windows of the right size. Sadly, though, finding the ideal window size for your project can be challenging. This is particularly true if this is your first time looking for a roof window. Keep in mind that the aesthetics and comfort of your home greatly depend on the size of the windows you choose. And this article, we’ll guide you through it.
Table of Contents
How are Velux Windows Measured?
Understanding how VELUX windows are measured is crucial when choosing one. Most of the time, the measurements presented in regards to Velux roof windows refer to the external frame dimension rather than the pane area. This should roughly represent the size of the hole you’ll need in your roof deck (though flashings and accessories might impact this).
Other products in category: Velux flashings
£80.83 tax excl.
Other products in category: Velux
£633.33 tax excl.
Other products in category: Timber Roof Windows
£223.33 tax excl.
How are Velux Window Sizes Codified?
The code corresponding to the size of the Velux window is shown in the table below. These codes are unified across all retailers that offer Velux windows, so you won’t have trouble finding a window with the right size.
But keep in mind that the size, frame design, glazing choice, and opening type may all affect the width and height shown in this Velux window size chart.
| Code | Width | Height |
| VELUX BK04 | 47cm | 98cm |
| VELUX CK01 | 55cm | 70cm |
| VELUX CK02 | 55cm | 78cm |
| VELUX CK04 | 55cm | 98cm |
| VELUX CK06 | 55cm | 118cm |
| VELUX FK04 | 66cm | 98cm |
| VELUX FK06 | 66cm | 118cm |
| VELUX FK08 | 66cm | 140cm |
| VELUX MK27 | 78cm | 62cm |
| VELUX MK04 | 78cm | 98cm |
| VELUX MK06 | 78cm | 118cm |
| VELUX MK08 | 78cm | 140cm |
| VELUX MK10 | 78cm | 160cm |
| VELUX MK12 | 78cm | 180cm |
| VELUX PK25 | 94cm | 55cm |
| VELUX PK04 | 94cm | 98cm |
| VELUX PK06 | 94cm | 118cm |
| VELUX PK08 | 94cm | 140cm |
| VELUX PK10 | 94cm | 160cm |
| VELUX SK01 | 114cm | 70cm |
| VELUX SK06 | 114cm | 118cm |
| VELUX SK08 | 114cm | 140cm |
| VELUX SK10 | 114cm | 160cm |
| VELUX UK04 | 134cm | 98cm |
| VELUX UK08 | 134cm | 140cm |
| VELUX UK10 | 134cm | 160cm |
How to Find the Size of a Velux Window?
Finding the appropriate code for a Velux window is simple. This is because every window made after 1968 has a helpful label with all the pertinent information printed on it in the upper right corner of the frame. Though, you need to open the window if you want to see the label.
The code on this label identifies the dimensions, frame design, glass type, and opening style of your Velux window. The information present here should be enough to tell you if the window is right for you or not, but if it isn’t, you should always feel free to contact customer support.
Conclusion
Choosing the right size is paramount when you’re trying to install Velux windows in your home. The size of the windows will impact the functionality, aesthetics, and curb appeal of your home, and it will also impact the usability and practicality of the window as well. In this article, we told you everything you need to know to determine the size of a Velux window. Now it is time to decide whether it is right for you.
