VELUX Window Sizes

Velux have been creating windows for over 75 years and the quality of the Velux range is extremely good when compared to other skylight window manufacturers. Velux are continually improving their product range and designs, which can sometimes make it difficult to fully understand their product offerings. Hopefully our useful guide to Velux window sizes and types will help you in choosing the right type, size and style of Velux window for your property.

Velux Roof Window Designs

The most common sizes for Velux windows and flashings can be found below:

Window	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

Velux Window Codes

Pine Frame Velux Window – GGL

This classic Velux window has a triple coating of clear varnish creating a vastly improved finish compared to other similar products. Although this type of design has been around for many years Velux is continually improving its design. GGL is the code for a Velux Pine Frame.

Velux uPVC White – GGU

Due to the increasing popularity of polyurethane windows for their durability and ease of care, Velux brought a uPVC white framed roof window to the market as an alternative to their original light pine varnished window. The code for uPVC white framed Velux windows is GGU. This window has a timber core and an outer frame moulded from high-quality polyurethane, which makes it perfectly suitable for use in areas with high moisture.

Velux, like other skylight window manufacturers, use a three-stage lock system normally located on the top handle or bar of the window. This is a useful feature that enables you to have your room vented without fully opening your Velux window.

Velux Integra Roof Windows

The Velux Integra range has been developed to utilise their innovative system of remote control, allowing to you open and close your Velux Integra window, blind or shutter with just a quick tap on the wireless control pad. With the ability to choose between electric or solar powered versions, a choice of white polyurethane or natural pine finish and automatic closure when they sense rain.

Velux Window Flashing Kits

The purpose of installing flashing is to waterproof the Velux installation into specific roof coverings. Velux Window flashing kits or sets are normally purchased at the same time as the windows. The flashing will need to be purchased separately from the window as they do not come as standard with your Velux window as they can come is various options. You need to consider the minimum roof pitch when choosing your flashing and ensure that the flashing kit you choose fits the angle of your roof. Don't forget that the flashing set also has a minimum angle required to take into consideration.

EKL/EDL/EBL

These flashing codes are maintenance-free, grey aluminium and designed for installation in roof windows with slate. They are up to 8mm in thickness and suitable for roof pitches from 15º – 90º.

ETN/EDN

These flashings are designed for a single roof window recessed installation into slate of up to 8mm in thickness and are suitable for roof pitches from 20º – 90º. A coupled version is also available. It is possible to combine windows side by side with 100mm frame caps using the ETN centre flashing.

EDZ

This flashing is designed for profiled or flat roof single window installation and has a minimum profile of 15mm and maximum profile of 45mm combined with a roof pitch that ranges from 20º – 90º.

EKW/EBW/EDW

These flashings are for roofing material that is up to 120mm in profile and for a single roof window in either a profiled or flat roof and suitable for roof pitches ranging from 15º – 90º. This flashing can also be used for thatching, profile sheeting, and interlocking slate.

EKP/EBP/EDP

These flashings are designed for roofs with a pitch ranging from 25º – 90º with a maximum thickness of 15 mm and are suitable for installing a Velux roof window in plain tiles for a maximum length of 340mm.

EDJ

This flashing is designed for a recessed installation of one roof window into profiled or flat roof up to 90mm in profile and suitable for roof pitches from 20º – 90º.