Slimline Bifold Door

The new Stellar Aluminium Slimline Bifold Door has all the strength a bifold needs and packs a real punch with its slim sashes and a contemporary looks. At just 117mm wide, the slim meeting stiles create an attractive sightline, letting the glass take centre stage for maximum consumer appeal. The slimline door meets the new Part L requirements for thermal efficiency with standard 28mm double glazing.

Product features and benefits

  • Up to seven sashes
  • U-values as low as 1.3 W/m2K - double glazed
  • U-values as low as 0.9 W/m2K - triple glazed
  • Multipoint locking for the main door and shootbolts for high security
  • Slimline 117mm meeting stiles for maximum view
  • Parallel stainless-steel tracks for ease of operation and stability
  • Quad stainless-steel rollers spread the load for optimum performance
  • Robust corner cleat system for strong precise corners
  • Weather performance to BS6375-1 and cycle testing to BS6375-2
  • Meets new Part L requirements for thermal efficiency
  • NEW low sightline integrated cill option


Bring the outside in

Wouldn’t you love a door that simply folds out of the way? A home where the boundary between indoors and out can simply disappear, giving you the freedom to create an incredible space for entertaining, relaxing or spending time with family and friends?

That’s the beauty of a bifolding door, but not all bifolds are built the same.

Why Aluminium Bifolds?

Quality is essential. To cope with the weight and forces, Stellar aluminium bifold doors’ strength and engineering are ideal. The ultra-slim sashes pack a real visual punch and because there’s thermal break technology throughout the system, this bifolding door insulates your home, ensuring it’s comfortable all year round.

Bifold Options

The layout of your Stellar bifolding door is configurable. Its track systems are robust and reliable, and security is built into the design. Any finish, any colour, and hardware that’s been tested to perform year after year.


The range of threshold options in Stellar’s product portfolio can meet various access needs. Some threshold systems can be set into the floor, for an almost seamless transition. Others are designed to offer easy access for wheelchairs, and for exposed locations there are deeper thresholds which have been developed to channel water away from your home.

New Integrated Cill Option

A new integrated cill option adds even more appeal to an already powerful proposition. The sleek, low sightline cill saves 35mm of height when compared with a traditional bifold cill. By design, it also uses fewer component parts and is quicker and easier to install than a separate outer frame and cill, especially on refurbishment projects.

Stellar Colour Range


Signal White
RAL9003 Flat Matt

Anthracite Grey
RAL7016 Flat Matt

Anthracite Grey / Signal White
RAL7016 / RAL9003 Flat Matt

Jet Black
RAL9005 Flat Matt

Jet Black / Signal White
RAL9005 / RAL9003 Flat Matt

Made to Order

RAL9001Flat Matt

Agate Grey
RAL7038Flat Matt

Slate Grey
RAL7015Flat Matt

Chocolate Brown
RAL8017Flat Matt

Anthracite Grey


Stellar’s quality demands an equally high-quality range of hardware.

aluminium casement window handle in white

Casement Window

Tilt & Turn Window

aluminium door handle

Flush Door

lift and slide door handle

Lift & Slide Door

Bifold Door

Inline Sliding Door

Colours and Finishes

Handle finishes have been selected for scratch resistance and durability as well as their ability to complement the finish of frames.

Satin Silver

Polished Chrome



All colours and imagery displayed is for illustrative purposes - please get in touch if you would like further information.