Inline Sliding Door

The NEW Stellar Inline Sliding Door is where slimline aesthetics and intelligent flush design combine. With a stunningly slim aluminium profile and an interlock of just 35mm, frames sit wonderfully unobtrusively. And with sashes that can be up to 1675mm wide, the Stellar Inline Sliding door opens up endless possibilities, creating bright, airy spaces and unrestricted views.

Product features and benefits

  • U-values as low as 1.4W/m2K (double glazed)
  • U-values as low as 0.9 W/m2K (triple glazed)
  • Multipoint locking
  • Flush door appearance
  • 2, 3 or 4-pane layout
  • PAS 24 security as standard
  • Weather performance to BS6375-1
  • ​Pre-inserted gaskets
  • ​Internally beaded system with patented knock-in beads
  • Meets new Part L requirements for thermal efficiency.


When you want to put all the attention on the view and create a striking style statement, the Stellar Inline Sliding door is the answer. The system has been purposely designed to maximise natural light diffusion and deliver next-level aesthetics for today’s modern interiors. It’s available in 2, 3, and 4-pane configurations with a maximum total width of 6500mm, so it offers design flexibility to support all architectural requirements.

Efficient performance

As you’d expect, the performance of the Stellar Inline Sliding Door is impressive. Its innovative thermal break technology means it meets Part L thermal efficiency requirements of Building Regulations with standard 28mm double glazing. Its outstanding weather performance and security testing credentials uphold the quality of the Stellar Inline Sliding Door.

It’s also fabricator-friendly with a direct glazed fixed light, eliminating the need for a fixed dummy sash, reducing fabrication time and improving manufacturing efficiencies. And thanks to its pre-gasketed, knock-in beads, installation is quick and straightforward, whilst providing a neat high-end finish on the gasket line.


Our range of threshold options can meet various access needs. Some can be set into the floor, for an almost seamless transition. There are options designed for wheelchair access, and for exposed locations deeper thresholds channel water away from your home.

Like all products in the Stellar range, the Inline Sliding Door comes with a 25-year surface guarantee as well as a 10-year mechanical and hardware guarantee. It’s easy to live with and promises a high-end finish every time.

Door Configurations

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.

Premium Satin

Hardex Graphite


Hardex Bronze

Hardex Gold

Hardex Chrome


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