Helsinki — Folded Oak Staircase

Helsinki, Finland

Folded Oak Staircase

A continuous ribbon of oak folding its way up a wall of precast concrete panels.

2 min read

The Story

The family asked for calm. A house near the shoreline, pale light for most of the year, and an interior that would never compete with the view.

The staircase had one wall to work with — large precast panels, smooth and cool, with the rhythm of tie-holes as their only ornament.

We answered with a single folded ribbon of oak: tread becomes riser becomes tread, one continuous grain wrapping every corner.

There is no visible structure, no handrail post, no break in the line. A sheet of glass with a slim dark rail is the only other element.

In a house built around silence, the staircase is the quietest thing in it.

Material Details

Crafted to Be Touched

Mitred corners carry the grain around every fold.
Precast panels with their honest tie-hole rhythm.
A slim dark rail on frameless glass.

Design Decisions

01

Why a folded ribbon

One material, one line. The fold gives the stair its strength and its story — nothing needs to be added.

02

Why precast concrete

The panels were cast with the same care as the joinery. Their tie-holes give the wall scale without decoration.

03

Why no visible steel

The structure lives inside the fold and the wall. What you see is what the family wanted to live with: oak, concrete, light.

Helsinkiwalkthrough

Project Facts

Location
Helsinki, Finland
Configuration
Straight, folded flight
Material
Solid oak, closed treads
Glass
88.2 VSG ESG Clear
Lighting
None — daylight only
Production
7 weeks
Installation
3 days

From First Call to Finished Home

  1. 01Consultation
  2. 02Design
  3. 03Engineering
  4. 04Production
  5. 05Installation
  6. 06Completed Home

Guests run their hand along the fold every time. So do we.

Homeowners, Helsinki

Materials in This Project

OakGlassConcrete

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