Design in glass and steel | Vector

2008, Stuttgart

The imposing, elegantly curved steel stairs with transparent glass steps combined with the exquisite stainless steel banisters give this design an incomparable exclusivity.

Transparent glass steps

These imposing steel stairs with transparent glass steps lead upwards over 3 storeys in the Vector commercial building in Stuttgart. With curved box-type stringers and an exclusive stainless steel banister, they make a successful statement. The full-surface screen-printed surface of the glass treads is slip-resistant and ensures a safe "step".

Construction for steel stairs with glass steps

  • box stringers made of welded rectangular profile in H-shape
  • steel treads welded between the stringers
  • fixed to the unfinished floor with steel floor plates


Project details

  • 3-running, evenly rounded with 2 intermediate landings
  • 62 risers, 59 steps and one stair head landing
  • flight width up to 1100 mm

  • made of 2 rectangular tubes welded between the side panels
  • flat bars with stainless steel edge protection welded in on the side panel side for 4-sided glass support

  • glass covering made of 3-layer laminated safety glass
  • top layer of toughened safety glass with matt white, full-surface screen printing for slip resistance

  • high-quality and visually appealing design, as there are almost no welded joints
  • railing post as a double flat steel post made of stainless steel, milled exactly in the middle of the filler rod penetration, straight on the underside, with a 30° bevel cut on the top side
  • post bracket bolted to railing post as flat steel bracket
  • handrail made of 42 mm stainless steel round tube
  • handrail holder made of 12 mm stainless steel round bars and flat steel brackets, screwed to railing post
  • railing infill made of horizontal stainless steel round bars "clamped" parallel to the staircase

In addition to the delivery and assembly of these exclusive steel stairs, we were also responsible for this project for Vector in Stuttgart:

  • the verifiable structural analysis of the steel stairs
  • the verifiable structural analysis of the stair railing
  • the vibration analysis


Kohlbecker Gesamtplan GmbH, Gaggenau

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