SWA MEMBERS
QUICK LINKS
GET IN TOUCH
- Steel Window Association, 7 Bell Yard, London. WC2A 2JR
- info@steel-window-association.co.uk
- 020 3475 8049
W20 is the traditional commercial framing system, 32mm wide with 5mm thick flanges, originally developed for public buildings and industrial applications.
It accommodates single glazing and double glazed insulated sealed glass units up to 16mm thick in the same profiles simply with a change of bead. All glazing, whether in fixed lights or casements, is in the same plane.
It can be divided into small panes with tee glazing bars, having a table face width of no more than 29mm.
Hinged casements, hung at top, bottom or side, and swing windows pivoted horizontally or vertically, can all be constructed from the same suite of profiles.
Elemental coupling is achieved with simple slender transoms and mullions.
W20 Internal Sections
Steel framed windows and doors are being requested more and more by home owners, Interior designers and architects as a way of enhancing a properties characteristics and achieving modern and contemporary aesthetic.
The W20 suite of steel profiles is ideally suited for this application as they are versatile, slim, strong and specifically designed to incorporate either single or double glazing.
Steel Window Association members manufacture and install a variety of products that will enhance a homes appeal. These range from fixed glazed screens, hinged single and double doors, sliding single and double doors and pivot doors. All will allow natural light to flow through between rooms and create a light and airy space.
Designs for these products are not off the shelf and so the client in conjunction with the SWA member is able to create a product that is unique to them and their home.
As these products are specifically for internal applications. The steel frames are available in a variety of finishes. These range from the ‘raw’ steel finish where you can see all of the welds and joints, galvanised finish which gives a silvery industrial aesthetic, powder coat finished in a variety of colours mainly from the RAL colour chart and also including metallic and even textured surfaces.
The ironmongery to the doors is normally specific to this product but the SWA member will have a catalogue of products that will suit the application and further enhance the appeal of the doors. Items such as lever handles, recessed handles, pull handles, espagnolette bolts and shoot bolts are all available and normally in a variety of colours and finishes.
The frames can be glazed in a wide range of glass types. As standard the glass would normally be a clear safety glass but members can also provide reeded, laminated, obscured, satin and Georgian wired glass. In some cases clients need improved sound insulation or thermal efficiency and these frames can be double glazed.
Where the client has a requirement for thirty minute fire integrity protection our members can offer fixed glazed screens and single or double doors/screens that have been tested to achieve this (subject to approval by your building control officer). We have more detailed information for these products in our ‘fire protection’ tab.
W20 External Sections
Our members can manufacture steel windows and doors using W20 hot rolled steel profiles. These are the slimmest profiles that are able to create steel doors, door screens and windows that comply to current building regulations.
The majority of domestic external steel doors and door screens that are seen on social media will be manufactured from this system as it has the slimmest profiles and therefore provides stunning aesthetics between the outdoor space and the home.
Doors can be manufactured as double or single hinged swing doors up to a maximum of 1800 mm wide and 2400 mm high (both maximums cannot be specified at the same time). Runs of fixed or opening glazing to the sides or above the doors can be fabricated to ensure that an entire space can be filled.
Some customers will want a screen design with more than one set of double doors so as to provide a link between the garden and home when they are in the open position.
Shaped frames are also possible and so gables, raked heads and arches are not a problem for our members.
Specifier’s guide
The specifiers guide is a technical document published for architects and designers. It contains our members range of products, section details and technical specifications.
Find a member
Our members are more than happy to discuss a project with you and then provide pricing, design details and specification criteria. Please click on the link above to locate a manufacturer or installer that can carry out a project in your area.
SWA MEMBERS