Sonsala Treppen

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Cantilever stairs

Treads that float.

No stringer, no beam, no clutter – just solid wood that seems to grow freely out of the wall. The cantilever stair is the most elegant way to connect floors, and our speciality.

Style studio

Your cantilever stair, your style.

Choose wood tone, lighting and railing – the sketch shows your choice instantly. If you like it, send it to us with one click.

Wood tone
Railing
Light
Steel colour
Your stair – live

What makes it special

Why a cantilever stair?

01

Maximum lightness

Without a visible substructure the room looks larger, brighter and more open.

02

Invisibly anchored

Steel brackets in the wall carry every tread – stable, tested and permanently safe.

03

Light as design

Integrated LED strips under the treads show off your stair at night too.

04

Your material, your style

Oak, walnut or ash, light oiled to deep dark – matching your floor and furniture.

From the building site

How a cantilever stair comes to life.

01 / 05 · Measuring

Every hole sits to the millimetre.

It all starts with a template on the concrete wall. Wherever we drill, a tread will later bear weight – so nothing is estimated here, everything is measured.

02 / 05 · Anchoring

What nobody sees carries for a lifetime.

Steel anchors, set firmly in the wall – exactly in the line of your future stair. This is the foundation of every floating tread.

More about cantilever stairs

03 / 05 · The skeleton

Steel brackets for every tread.

Solid steel brackets go onto the anchors. Later they disappear completely inside the wood – and your treads seem to float freely.

04 / 05 · Shell construction

The stair stands – already walkable.

Still a shell, but step by step straight out of the wall. All that is missing now is solid wood and light.

Our installation team

05 / 05 · The result

Done. And floating freely.

This is what one of our cantilever stairs looks like in the end: solid wood, invisibly anchored, built for generations.

Cantilever stair – dark wood, no railing, LED light slots – project by Treppen Sonsala

Style worlds

Which style suits you?

52 real projects – pick a style and get inspired.

Design

Your options

  • Solid wood treads in oak, walnut, ash
  • Oiled, lacquered or brushed finishes
  • LED step lighting
  • All-glass, steel or cable railings
  • Tread thicknesses for a solid look

Frequently asked questions

Good to know

Which wall is suitable for a cantilever stair?

Usually a load-bearing solid wall of concrete or masonry. In new builds we ideally plan the anchoring during the shell construction – in existing houses we check the wall on site.

Is a cantilever stair without a railing safe?

The treads themselves carry safely. Whether a railing is required depends on height and use – we advise you and offer elegant solutions such as all-glass railings.

Can LED lighting be added later?

It is best to plan the lighting from the start. That way cables and profiles disappear completely into the wall and treads.

Personal consultation

Let's talk about your staircase.

Choose a free time online – measurement and consultation at your place or a conversation on the phone. We confirm personally.

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