Roof Window & Skylight Size Charts

Browse VELUX, ECO+, FAKRO, RoofLITE & Roto windows by size

Use our handy chart to shop for roof windows by size. Buy VELUX, FAKRO or Roto windows, or discover the massive savings you'll make with VELUX alternatives, such as ECO+, RoofLITE windows at low prices. Many products are in stock for next day delivery or choose our free delivery service. And don't forget: We price match to ensure you get the best price as well as the perfect fit.

For uninhabited attics, sheds, garages and other outbuildings, use our skylights chart below.

Shop for Roof Windows By Size

Standard sizes

Height Width
  55cm 66cm 78cm 94cm 114cm 134cm
55cm       VELUX    
62cm     VELUX      
70cm VELUX         VELUX
78cm VELUX, ECO+, FAKRO, RoofLITE FAKRO     ECO+  
98cm VELUX, ECO+, FAKRO, RoofLITE VELUX, ECO+, FAKRO, RoofLITE VELUX, ECO+, FAKRO, RoofLITE VELUX, FAKRO Roto VELUX, ECO+, FAKRO, RoofLITE
118cm VELUX, FAKRO VELUX, ECO+FAKRO, RoofLITE VELUX, ECO+, FAKRO, RoofLITE VELUX, ECO+FAKRO, Roto VELUX, ECO+, FAKRO, RoofLITE, Roto  
140cm   VELUX VELUX, ECO+FAKRO, RoofLITE VELUX, FAKRO, Roto VELUX, FAKRO, RoofLITE, Roto VELUX, RoofLITE, Roto
160cm     VELUX, ECO+FAKRO, RoofLITE VELUX, FAKRO VELUX VELUX
180cm     VELUX, FAKRO FAKRO    

Non-standard roof window sizes

Height Width
  47cm 54cm 65cm 74cm    
78cm ECO+ Roto        
98cm VELUX, ECO+ Roto        
118cm   Roto Roto Roto    
140cm       Roto    
160cm       Roto    

Shop for Skylights By Size

Skylights are designed for uninhabited spaces, such as your attic, shed, stable or outbuilding. They will add daylight and fresh air into an otherwise stale environment, and, as they come with fitted flashing, they are a cheaper way to get the most out of a space.

Skylights, unlike roof windows, differ in that skylights don't meet Building Regulations and so are limited to use in uninhabited spaces. Learn more on the Planning Portal.

Don't forget! Not only do we guarantee the lowest prices, we offer a FREE delivery service too.

Height Width
  45cm 46cm 48cm 54cm 80cm  90cm
48cm           FENSTRO
55cm FENSTRO FAKRO        
61cm   VELUX, FAKRO        
75cm FENSTRO FAKRO        
80cm         Sterlingbuild  
83cm       VELUX    
90cm     FENSTRO      
98cm       FAKRO    

 

What's the difference between roof windows and skylights?

Roof windows and skylights differ in that skylights don't meet build regulations and so are limited to use in uninhabited spaces, such as hallways, lofts and outbuildings. You can find more information on the Planning Portal.

VELUX sizesRoof windows

Roof windows flood your loft conversion or extension with lots of daylight, fresh air and a clear view, adding a real impact to your home.

Range of choice

The leading brands offer a range of innovative roof window designs with a solution for every need. Whether your installation is low in the roof and you need head space (opt for a top hung frame) or is high up (opt for a remote controlled model), there is a budget friendly answer for your home improvement project.

Bargain hunters, gadget lovers, design

Are you a bargain hunter, a technophile or looking for the wow factor for your home? Our selection has a roof window for you. We can offer you a window with high quality components at a budget friendly price, the ability to control your windows and blinds from the comfort of your sofa or a stunning feature.

VELUX skylight sizesSkylights

Skylights are a low cost way of adding daylight and ventilation to a loft space, garage or shed. They are strictly for uninhabited spaces.

Value for money

Whilst being the UK's cheapest skylight, the models we sell are definitely the best value for money. Their simple, effective and durable design ensure you receive all the benefits of natural light whilst protecting your space from the weather for years to come.

Roof access

If you need roof access, as well as light in your uninhabited space, choose a model that allows easy access onto the roof to perform maintenance work or as an emergency escape.