Shop for Flat Rooflight Windows By Size

VELUX, ECO+, FAKRO, RoofLITE & Roto rooflights by size

Use our handy chart to shop for flat rooflight windows by size. We only supply stylish, high performance flat roof windows from brands we trust, including VELUX, FAKRO, ECO+ and Sunsquare, as well as our own brand of industry leading specs. 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 with the perfect fit.

Browse our huge choice of roof windows for loft conversions and pitched roof extension. For uninhabited attics, sheds, garages and other outbuildings, use our skylights chart.

Rooflights up to 120cm Wide

Length Width
  45cm 50cm 60cm 70cm 80cm 90cm 100cm 110cm 120cm
50cm   Sterlingbuild
Whitesales
             
60cm     ECO+
FAKRO
VELUX
Whitesales
           
70cm       ECO+
FAKRO
Sterlingbuild
         
80cm         ECO+
FAKRO
Sunsquare
VELUX
       
85cm ECO+                
90cm    

ECO+
FAKRO
VELUX
Whitesales

    ECO+
FAKRO
VELUX
     
100cm             ECO+
FAKRO
Sterlingbuild, Sunsquare
VELUX
Whitesales
   
110cm               Whitesales  
120cm           ECO+
FAKRO
VELUX

Sunsquare
VELUX

  ECO+
FAKRO
Sterlingbuild
VELUX
Whitesales
125cm             ECO+    
140cm               Whitesales  
150cm            

ECO+
FAKRO
Sterlingbuild
Sunsquare
VELUX
Whitesales

  Sterlingbuild
Sunsquare
170cm                 Whitesales
175cm             ECO+    
200cm             ECO+
Sterlingbuild
Sunsquare
Whitesales
  Sterlingbuild
Sunsquare
220cm                 ECO+
FAKRO
Whitesales
225cm             ECO+    
250cm             ECO+
Sterlingbuild
Sunsquare
  Sunsquare
Sterlingbuild
275cm             ECO+    
300cm       Sterlingbuild     ECO+
Sterlingbuild
   
325cm             ECO+    
350cm             ECO+
Sterlingbuild
   
375cm             ECO+    
400cm             ECO+
Sterlingbuild
   
500cm                 Sterlingbuild
600cm                  Sterlingbuild

Between 125cm & 250cm Wide 

Length Width
  125cm 130cm 140cm 150cm 160cm 175cm 200cm 225cm 250cm
100cm       Sterlingbuild          
140cm     FAKRO            
150cm ECO+   Sterlingbuild

ECO+
Sterlingbuild
Sunsquare
VELUX

         
175cm ECO+     ECO+   Sterlingbuild      
200cm     Sterlingbuild ECO+
Sterlingbuild
Sunsquare
  ECO+ ECO+    
225cm ECO+     ECO+   ECO+ ECO+    
250cm ECO+     ECO+
Sunsquare
  ECO+ ECO+ ECO+ ECO+
275cm ECO+     ECO+   ECO+ ECO+ ECO+ ECO+
300cm ECO+ Sterlingbuild   ECO+
Sterlingbuild
  ECO+ ECO+
Sterlingbuild
ECO+ ECO+
325cm ECO+     ECO+   ECO+ ECO+ ECO+ ECO+
350cm ECO+ Sterlingbuild   ECO+   ECO+ ECO+ ECO+ ECO+
375cm ECO+     ECO+   ECO+ ECO+ ECO+ ECO+
400cm ECO+     ECO+ Sterlingbuild ECO+ ECO+
Sterlingbuild
ECO+ ECO+
500cm         Sterlingbuild        

What's the Difference Between Roof Windows, Rooflights & Skylights?

The biggest difference between roof windows, rooflights and skylights (as the terms are used on Sterlingbuild), is skylights don't meet Building Regulations and so are limited to use in uninhabited spaces, such as lofts and outbuildings. You can find more information on the Planning Portal. Roof windows are for use on pitched roofs, such as loft conversions and pitched roof extension. Rooflights are used on flat roofs, again, for home extensions and public buildings. 

Rooflight sizesFlat Glass Rooflights

We sell an extensive range of flat glass rooflights. You'll find a size to meet any budget, from our pocket friendly ECO+ range (low U-values, great design, next day delivery) to Sunsquare (BSI certified architectural rooflights). This style of rooflight offers a contemporary finish to your property, adding daylight and the feeling of space, as well as keeping heat in.

There are a range of options to choose from. Fixed, non-opening rooflights are available if you already have a source of fresh air. Opening rooflights are available as manual and electric. Glazing options include double, triple and the impressive quadruple glazed models, as well as tints that provide privacy or soften bright light.

And let's not forget walk-on rooflights and floorlights. These amazing flush glass flat windows add daylight to rooms below without losing out on floor space.

 

Roof lantern skylight sizesRoof Lanterns

Lantern rooflights will make a huge impact on your space. These too will flood your room with daylight, but, due to the size and design, roof lanterns open up your roof a lot more. We offer a range of sizes and prices. The budget friendly ECO+ range (low U-values, great design, next day delivery) to Sunsquare (BSI certified architectural rooflights). 

Roof lanterns too have a number of options, including fixed, manual, and electric and solar powered, and glazing options. For smaller spaces, pyramid shaped lanterns are an option, giving a fantastic feature to your home.