Glass sliding doors · frameless Walls that
slide away.

Toughened panes running in a slim top and bottom track, stacking to one side. Closed, the veranda is a room you can use in February. Open, there is nothing there at all.

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Ask about sliding doors

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A wall in winter and an opening in summer

Nothing in the view

There is no frame around each pane — only a slim track above and below and a seal between the panes. From inside, what you see is glass and the garden, not a grid of posts.

It stacks, it does not swing

Every pane runs the full length of the track and parks against the end, so an open wall takes up the width of a few sheets of glass and nothing swings into the space you are trying to use.

Closed, it is weathertight enough to sit behind

Brushes and a drained bottom track keep out the wind and the driving rain. It is not an insulated façade and it is not pretending to be one; it is the difference between a terrace and a room.

The specification

What it is made of

Figures being confirmed with the supplier

Glazing: Toughened safety glass, single
Thickness: Specified per bay — to be confirmed
Panes: Sized to the opening, stacking one or both ways
Track: Aluminium, drained at the sill
Frame: Frameless between the tracks
Finish: Powder-coated, any RAL
Seals: Brush between panes and at the head
Max width: Per bay — to be confirmed

Where it fits

When glass is the right answer

Good fit

A veranda you want to use through the winter rather than close up in October.
A terrace that catches the wind from one direction and is unusable because of it.
A space where the view is the reason you built it.
An opening with a solid head and a level sill to take the tracks.

Look at something else

You want an insulated, heated room to building-regulation standard — that is a glazed extension, not this.
You want privacy or darkness, which is a shutter or a screen.
The sill cannot be drained, which is the one condition this system will not forgive.

Getting one

Measured on site, every time

Glass is the one product in the range we will not take a measurement for over email. A pane cut 4 mm wrong is scrap, and a sill that is 15 mm out of level over four metres does not show on a tape. We come and measure, and the fit is then our responsibility.

Under-roof shading is the one system you can configure and buy online today. Glass starts with a visit.

Ask about sliding doors

Write to info@luwenzo.com or call +32 3 000 00 00.

Ask us

Before you ask

The questions we get

Is it double glazed?
No. These are single toughened panes in a slim frameless track, which is what lets them stack without a post every metre. If you want a thermally broken, double-glazed, insulated wall, you want a glazed extension and we will say so.
Will it keep the heat in?
It keeps the wind out, which is most of what makes a veranda cold. It will not hold a temperature on its own in January. With a roof, shading and a small heater, people use these rooms all year.
What happens when it rains?
The bottom track is drained to the outside. Water that gets past the brushes runs out rather than sitting in the channel, which is the detail that decides whether a sliding wall is still working in year five.
Can the panes be locked?
Yes, on the leading pane. It is a terrace closure rather than a security door, and a roller shutter outside it is what you want if security is the question.