Staircase BOSTON

Strong, comfortable staircase from high-quality materials

The modular staircase BOSTON is an elegant solution to make use of wasted space in your home. Select from the drop-down menu below to design the staircase which suits you best.

Product Properties

Tread finish
Tread width
70 cm
18 cm
Max. floor-to-floor height
350 cm

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Single Price*
As low as €1,947.50

Comfortable elegance

The space-saving BOSTON staircase is the safe way to access all that extra space upstairs. The staircase is available as a straight flight or quarter-turn in several designs with between 11 and 13 treads (FSC®-certified). Choose a configuration to match your needs and interior design. The handrail matches the solid-wood treads for a nice balanced design. Both the handrail and fillings can be shortened depending on the number of treads, the rise interval and the choice of staircase format. Each tread has an adjustable rise of between 19 and 25 cm. Maximum floor-to-floor height: 350 cm. A straight flight staircase has a longer banister than a quarter-turn staircase as it reaches all the way from landing to the bottom tread. Everything is included, together with the support pole. BOSTON is designed with an outside banister and balusters fitted to two treads each to maximise comfort and stability. Varnished treads, powder-coated steel structural elements, a handrail made of solid wood and stainless-steel fillings all add up to a strong and durable staircase.

DIY modular staircase – Easy to install

Modular staircases from SOGEM are easy to install. No special tools are needed. Our installation videos guide you step by step through the installation process.

Need inspiration on how to make more space in your home? How about a small office under the ceiling? Even a walk-up closet? Use a modular staircase from SOGEM to safely free up and access extra space. A one-side banister is always included. You can also fit a second banister – or simply install the staircase against a wall. The additional banister is designed for installation on straight flight staircases.

NB!: When installing the staircase as quarter-turn, it is important to mount the two wall brackets included in the package, or add two tread connectors (Not included in the package).

Enhanced safety and comfort

The BOSTON staircase boasts certified compliance with the load requirements defined in European building regulations (EUROCODE). To enhance child safety, you can install riser bars under the treads with colours to match the staircase of your choice. And why not add landing banister as railing at the top of the staircase to ensure safe use of your mezzanine floor? To add the finishing touches to your staircase, you can also fit the cover kit – designed to hide screws and assemblies on our modular staircases.

In our Dimensions (under DOWNLOADS) you will find precise measurements of the staircase and explanation of staircase terminology.

Be aware this staircase is designed for rooms with a deck thickness of min. 20 cm. (rise + 2 cm).

Handrails are delivered in lengths of 150 cm.

BOSTON tread

Wood is a natural product and the natural colour of the wood may vary from tread to tread. Therefore, the colour reproduction of the images may not always reflect the actual colour of the wood.


  • Adjustable staircase height
  • Good-quality, very stable staircase
  • Deep treads for extra comfort
  • Easy to install


M Opening length
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N Opening width
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H Floor-to-floor height
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R Total going length
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R1 Total going width
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C1 Staircase width
74 cm
S Tread rise
From 19,0 to 25,0 cm per tread (depending on floor-to-floor height)
G Going
18 cm
Product number
'Please select a variant'
'Please select a variant'
Tread finish
Tread thickness
33 mm
Tread width
70 cm
Tread depth
22 cm
Structure material
Structure finish
Powder coated
Filling material
Stainless steel tube Ø6 mm
Handrail diameter
4 cm
Indoor use, Private use in single family homes

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