Since 2004 · Installation all over Europe
Bespoke stairs that transform a room.
- Cantilever, folded-plate, bolted, stringer, steel and spiral – every type made to measure.
- Planned and built to the millimetre – installed by our own team.
- Solid wood, steel, glass and light – tuned to your home.
- From Weingarten, wherever you are – across Germany and all of Europe.
This is how precisely we plan every stair – yours too.
Plan your stair- 22 yearsExperience in every step
- Everything from one sourcePlanning, manufacturing and installation by our team
- Across EuropeMeasuring and installation right at your home
- Free consultationMeasuring and quote without obligation
Stair types
Which stair suits your home?
From floating and light to solid and timeless – every stair is made precisely for your room. Find your favourite; we are happy to advise you.

Cantilever stairs
Solid treads straight out of the wall. Light, open – and our speciality.
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Folded-plate stairs
Tread and riser as one continuous band of solid wood.
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Stringer stairs
Wooden treads between two steel stringers – sturdy and clear.
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Bolted stairs
Delicately held, so light falls through the stairwell.
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Glass railings
Safety in all-glass, without blocking the view.
ViewProjects
Step by step – every step a real project.
Every step of this stair is a photo of our work – as a spiral and a straight stair. Tap a step to see the project in full.
Installation · Cantilever stair
First the steel, invisible in the wall.
Every tread gets its own steel bracket – precisely aligned, firmly anchored.
Step by step
Then comes the wood.
The solid treads are slid onto the brackets and screwed in place. No stringer, no beam – just wood.
The result
Done. Treads that float.
This is how every Treppen Sonsala cantilever stair is made – by our own installation team.
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 stairs03 / 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 team05 / 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.


Stair planner
Plan your staircase in 3D.
Choose the construction type – the stair planner opens with your choice. There you set the shape, dimensions, wood, railing and light, see the stair in 3D or in a photo of your room and compare it with our real projects.

Process
How it works.
- 01
You get in touch
By form, phone or e-mail – ideally with a few photos of the stairwell.
- 02
We come to you
Advice and exact measuring on site – free and without obligation.
- 03
You receive your quote
Well-thought-out planning, transparent costs, no surprises.
- 04
We build your stair
Made to measure and installed by our own team.

Our team
Planning and installation from a single source.
Since 2004 we have been planning, building and installing bespoke stairs – with our own experienced team. Every detail stays in one hand: from the first consultation and millimetre-precise measuring to the finished stair.
Customer reviews
What our customers say – real and unedited.
Ich habe 2024 in zwei Häusern Treppen einbauen lassen. Und in beiden Häusern hat von Anfang bis Ende alles geklappt. Sehr gute Beratung, sehr gute Qualität, flexible Terminabsprache und unschlagbar was den Preis betrifft. Ich würde immer wieder ihn auswählen, einfach 5 Sterne!!!!
Wir haben im Jahr 2022 eine Treppe von Sonsala Treppen erhalten (siehe Bilder, auch welche vom Aufbau). Herr Sonsala ist ein Treppenbauer, wie man ihn nur selten findet. Seine Leidenschaft für das Handwerk spiegelt sich in der außergewöhnlichen Qualität und Ästhetik seiner Arbeiten wider – jede seiner Treppen besitzt das gewisse Etwas. Auch das Preis-Leistungs-Verhältnis war vollkommen angemessen.
Wir können die Firma Sonsala Treppen daher uneingeschränkt weiterempfehlen.
Zuverlässig, freundlich und professionell. Wir hatten eine sehr gute Erfahrung mit Sonsala Treppen und können die Firma wärmstens empfehlen
Customer voices: Our customers posted these reviews of the stair we built for them on Google. We reproduce them word for word and unabridged and publish them with the express permission of the authors. Authenticity (Section 5b (3) UWG): All authors are customers for whom we built a stair. You will find all reviews – including future ones – unchanged via "All reviews on Google".
Reviews from Google Maps
How we show reviews: The reviews are loaded directly from our Google business profile when this page is opened and shown unchanged in their original language – we select nothing, shorten nothing and store nothing. Google determines which reviews (at most five) appear and in which order ("most relevant first"); you can see all reviews via "All reviews on Google". Authenticity (Section 5b (3) UWG): We compare new reviews with our orders and report reviews that cannot be attributed to a customer to Google for review; Google additionally checks reviews according to its own guidelines.
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.






