Steel Bifold Doors

Having a folding and sliding mechanism, steel bifold doors consist of multiple door leafs, offer multiple opening configurations and are easy to use like a standard traditional door. In open positions, steel bifold doors create maximum clear opening space up to 90% that provides a seamless connection between inside and outside in your property.

They offer a balanced solution in terms of natural light and clear opening that your project requires. 


  • Thermally broken profiles as standard 

Materials and Surface Finishes

  • Strip galvanised steel (Allowing full range of standard powder coated RAL colour options)
  • Corten steel
  • Stainless steel
  • Marine grade powder coated for for use in marine and coastal environments

Size Limitations

  • A typical stee bifold doors have panel size up to 1.2 metres in width and 3 metres in height.
  • A bifold door leaf may weigh up to 100kg.

Opening options

  • Inward opening, starting from 2 panels to 8 panels.
  • Outward opening, starting from 2 panels to 8 panels.
  • Opening configurations with traffic door
  • The traffic door option is available for all opening configurations, enabling you to utilize the first leaf as a traditional entrance door.

Thermal Performance

  • Thermal performance of a steel sliding door depends on its frame and glass combinations.
  • A typical steel sliding door can achieve a U-value less than 1.4 W/m2K with a double glass (Ug=1.0 W/m2K).
  • For better U-values, triple glass must be choosen.

Safety & Security Options

  • Steel bifold doors come usually with a standard multi-point locking system.
  • Burglar resistance classes of RC2, RC3 or PAS24 are available as security options.

Weather-tightness Performance

A typical steel sliding door must meet the following minimum weather-tightness performance values:

  • Air tightness: Class 4 (600 Pa)
  • Water tightness Class 9A (900 Pa)
  • Wind load resistance: Class C4 (1600 Pa)

Regulations and Standards

Any steel bifold doors to be installed in a residential property is subject to building regulations and some certain standards.

  • Doors to be installed on the ground floor of new buildings must have PAS24 securilty level. (Part Q, Read More >> )
  • Doors to be installed in residential properties must comply with Approved Document L in terms of thermal performance ( Read More >>

Product range

Steel bifold doors, Coming soon!

Steel bifold doors can be used as a patio door

Applications of Steel Bifold Doors in Residential

  • As a patio door
  • As a balcony door
  • In conservatories 
  • In extensions