Bi-fold doors are the ideal way to open up your home and bring the outside in, whilst still keeping the weather out.

Our Optio bi-fold doors deliver outstanding reliability, performance and design every time, enabling you to expand your living space by opening up wide expanses of your home to your outside space.

Built to your needs, our bi-fold offer you a bespoke solution every time, from the configuration of the doors to the handles, accessories and colour, making our Optio bi-fold doors the perfect addition to your home.


  • Certified under the Secured By Design scheme
  • Tested to PAS 24
  • U-value = 1.7 W/m2K
  • Unique, pop-out handle that allows for maximum door opening and panels to stack square
  • Four stainless style rollers to ensure smooth and consistent operation


  • Chamfered and square bead options
  • Glazing 28mm – 40mm
  • Available in a range of opening configurations
  • Available with heavy duty rollers; BSF70 HD
  • Available in a range of single or dual colour and anodised finishes