Fenestration
Slim Series — Telescopic Sliders & Partitions
Where a standard 2-track slider only ever opens half its width, the Slim Series telescopes — multiple slim-profile panels stack and slide together to park at one side, opening most of the aperture. It's the system for a wide showroom front or a room that needs to open up completely.

What matters about this product
- Near-full-width opening.
- Panels telescope and stack at one side instead of overlapping in place, so the opening isn't limited to half the frame width.
- Slim visible profile.
- Narrower stiles than a standard slider keep the glass area maximised and the sightlines minimal.
- Multiple panels, one smooth action.
- Panels are linked so operating the leading panel moves the whole stack.
- Suits large openings.
- Sized for showroom fronts, large balcony openings and room-dividing partitions, more than a standard window aperture.
- Needs a stacking pocket.
- The parked panels need wall depth at the side to stack into — this has to be planned into the opening, not added after.
- Higher hardware cost than a basic slider.
- The telescoping rollers and linking hardware cost more than a standard 2-track system — reflect that when comparing quotes against a simple slider.
Specifications
- Panel count
- 3+ telescoping panels, project-specific
- Glass thickness
- 6mm–10mm depending on panel size
- Frame
- Slim-profile aluminium, powder-coated or anodized
- Typical use
- Showroom fronts, large balconies, room partitions
Questions people actually ask
How much of the opening actually clears?
Telescoping panels stack at one side, so most of the aperture width clears — significantly more than a standard 2-track slider, where one sash always overlaps another.
Does it need extra wall space?
Yes — a stacking pocket at the side where the panels park. This needs to be part of the opening design from the start, since it can't be retrofitted.
Is this the same as a folding sliding door?
No — panels here slide and telescope in one plane rather than folding on hinges. Folding doors concertina into a tighter stack but each panel keeps its own frame stile visible; telescoping sliders keep a flatter look when closed.
What's it best suited for?
Wide openings — showroom shopfronts, large balcony doors, office partitions that need to open up completely rather than just admit air.
Related products

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Glass Profile Premium Works
Minimal-frame structural profile glazing for Lucknow shopfronts and premium interiors — glass with the least aluminium possible in view.