Fenestration
Folding Sliding Doors
A folding sliding door concertinas open on hinged panels that stack to one side, clearing close to the full width of the opening. It's the system for turning a balcony or patio into part of the room, at the cost of a visible frame line on every panel when the door is closed.
What matters about this product
- Widest practical opening.
- Folding panels clear more of the aperture than a telescoping or standard slider, which is the whole appeal for an indoor-outdoor room.
- Compact folded stack.
- Panels concertina tightly to one or both sides, freeing the opening without needing a deep stacking pocket.
- Each panel has its own frame.
- When closed, every panel's stile is visible — more visible frame lines than a single large sheet of glass, which is the honest trade for the fold-away opening.
- Toughened glass throughout.
- Full-height glazed panels at floor level use toughened glass as standard.
- Weather-sealed track at the sill.
- A properly sealed bottom track keeps rain out at ground level, which matters more here than on an upper-floor window.
- Multi-point locking on the lead panel.
- Secures the full folded stack from a single locking point.
Specifications
- Panel configuration
- 3 to 7+ folding panels, project-specific
- Glass
- Toughened, 6mm–10mm
- Track
- Weather-sealed floor track
- Typical use
- Balconies, patios, indoor-outdoor room openings
Questions people actually ask
How is this different from the Slim Series telescoping slider?
Both open most of the aperture. Folding doors hinge and concertina, keeping a visible frame stile on every panel when closed. Telescoping sliders stay in one plane and sit flatter when closed, but need a stacking pocket the folding system doesn't.
Can it be used at ground level facing outdoors?
Yes — this is its main use, for balconies and patios. The floor track needs a proper weather seal at ground level to keep rain from tracking in underneath.
How many panels can it take?
Typically three to seven or more, depending on the opening width — this is sized per project rather than off a fixed catalogue size.
Is the glass safe for a floor-level opening with children around?
Yes, toughened glass is standard for full-height panels. For added fall protection on an upper floor, pair it with a glass railing or invisible grill on the outside.
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