Arched Top 'D' PVC-u Windows

Arched 'D'

We offer a range of arched top 'd' frames with a minimum size of 400mm(w) x 200mm(h), glazed or un-glazed in Spectus and Kommerling profile systems. The stock colours are White, Rosewood, Light Oak, Rosewood on White and Light Oak on White. We can also supply special order colours including Black, Cream, Irish Oak, Grey and White Foil as well as a painting service to have the windows sprayed to any RAL colour code.

You can see the standard RTF stained leaded designs, RBF bevel designs and obscure options on our website. We also offer custom stained leaded designs which can be copied from existing designs in your home, found on the internet or altered versions of the RTF and RBF designs.

Arch D


With Low E (Thermaglas) and Argon filled sealed units we can achieve a WER 'C' Rating to meet building regulations. The following glass options are also available:

Toughened, Self Cleaning, Triple Glazed, Anti External Condensation
Easy Clean Coating, Tinted, Painted, Laminated


  There are several types of Arch 'D'.

Standard 'D's have a height that is half the width.
Long Leg 'D's have a height that is more than half the width.
Shallow 'D's have a height that is less than half the width.

Types of Arch

Types of Arch2


Each of these can also be 'True' or not. A 'True' arch would become a circle if the arch was carried on as shown to the left. If the arch is not 'True' then we require a template of the opening to make it fit.




Drawing (1)

We send 'D's up to 1000mm Width by over night courier to Mainland UK. Next day dispatch on stock sizes. Currently 20 - 30 working day dispatch