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What Velux window sizes are there?

Velux windows are a great way to bring extra light and ventilation into your home. If you’re considering installing Velux windows at home, you’ll want to know what sizes are available.

Velux window size chart

Velux windows are available in a wide variety of sizes. Some of the most popular sizes for UK homeowners include:

Window codeWidthHeight
VELUX BK0447cm98cm
VELUX CK0155cm70cm
VELUX FK0466cm98cm
VELUX MK2778cm62cm
VELUX PK0494cm98cm
VELUX SK08114cm140cm
VELUX UK10134cm160cm

Our costs are ballpark averages – get a local tradesperson to quote now

The size of Velux window you can specify will depend on the configuration you desire.

Visit the Velux website for more detailed information.

Velux rooflight sizes and configurations

As you can see from the table above, Velux windows are available in many different sizes. They can also be configured to meet your design specifications and opening requirements.

Velux windows can be specified with three different opening functionalities:

  • Centre-pivot
  • Top-hung
  • Automated

Centre pivot Velux windows feature the original top control bar. They can be rotated 180 degrees to provide cleaning access and are suitable for roof pitches of between 15 and 90 degrees.

Top hung windows open outwards for an unobstructed exterior view. They can open in any position up to 45 degrees and are suitable for roof pitches between 15 and 55 degrees.

Automated windows can either be electrically or solar powered. Both options are switch operated and are perfect for out-of-reach windows.

Where is the best place to install Velux windows?

Velux windows are an excellent choice for any room with an exterior ceiling that would benefit from increased levels of natural light. They are often installed in converted lofts and extensions to get natural light into an otherwise windowless room.

Velux windows are being used in a wide range of settings, including:

  • Bedrooms
  • Living rooms
  • Home offices
  • Playrooms
  • Kitchens
  • Hallways and landings

This has been made possible by the wide variety of designs now available from Velux.

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Velux window designs

As mentioned above, Velux windows were originally used mainly in loft rooms and extensions as a way to boost natural light.

Today Velux windows include a variety of different window types alongside the classic roof light. Some of the most popular Velux windows include:

  • Roof windows
  • Flat roof windows
  • Roof balcony and terrace windows
  • Sun tunnels
  • Roof windows with blinds and shutters

Velux windows can also be specified with a variety of accessories to allow for complete design customisation.

Benefits of Velux windows

There is a reason why Velux windows continue to prove so popular with UK homeowners. They offer households a wide variety of benefits when it comes to improving interior living space.

  • Increased natural light
  • Improved ventilation
  • Energy saving design
  • Stylish aesthetic appearance
  • Smooth and durable opening and closing functionality
  • Quick and easy to install
  • Increased property value
  • Low maintenance

What’s more, your Velux windows don’t need to be installed by an authorised Velux installer. A professional roofing specialist or glazier should be confident in installing Velux windows.

Velux window glass options

Velux windows can be specified with a choice of different glass types. What’s best for you will depend on your expectations for your new Velux windows. Some of the most popular glass types for Velux windows are:

  • Double glazing
  • Triple glazing
  • Noise reduction glass
  • Toughened glass
  • Low-E glass

Whether you want to improve your home’s thermal performance or block out exterior noise, there’s a Velux window perfect for you.

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Flashing for Velux windows

Installing flashing around the exterior of a Velux window is essential. It ensures that the Velux window is completely watertight and should be chosen to fit the angle of your roof.

Flashing kits for Velux windows are sold separately to the windows themselves. You will need a specific type of flashing for each Velux window type and the roof where it will be installed.

Before you start your Velux window home improvement project, it’s important to discuss with your contractor to ensure they are fully aware of all the requirements for the installation.

Choosing a Velux window installer

It can sometimes be difficult to choose a professional and trustworthy contractor for your home improvement jobs. When you opt for a Checkatrade member, however, you go a long way to ensuring that you’re working with a highly skilled trader.

The Checkatrade database contains many professional and highly skilled roofers and glazers. Before you begin your Velux window installation project, it’s a good idea to get at least three separate quotes from different specialists working in your area.

Start your Checkatrade search now to find a Checkatrade-approved tradesperson today!

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What is the standard Velux size?

There is no standard Velux window size. Have a look at the table above to see some of the most common sizes.

How do you measure the size of a Velux window?

Velux window sizes are for the exterior frame not the glazed section. Most installers, however, will make three measurements to ensure accuracy. These are the exterior frame size, the exterior glass pane size, and the exterior flashing size.

What is the difference between a skylight and Velux?

A skylight is a roof window that is designed to allow natural light to enter a building interior. Velux is a well-known and high-quality window brand.

The name Velux has become synonymous with skylights and rooflights. There are, however, other skylight manufacturers producing roof windows of varying quality.

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