freedom to create

The easiest way to fixing stairs and landings

The Architect gains a smooth obstacle-free soffit with no supports on show

The Engineer gains a robust, simple and efficient connection, which can also be used to satisfy robustness

The Insitu Contractor does not need to incorporate connections into the wall requiring tight tolerance

The Precaster keeps control of the connection within the factory, with no need for specialist operations on site

The Main Contractor gains reduced crane hook-time requirements, and rapid provision of access stairs

Advantages with IC stair connectors

Corbel-free connection between staircase and landing.

  • Cost effective solution
  • Faster and safer installation on site
  • No welding or bolting on site
  • ETA approved/CE market product
  • Standard reinforcement
  • Design tools
  • Tested for seismic areas
  • Invisible

Area of use



TSS – (Terrasso Stair Support).

Inner tubes are pulled out with wire and return rope (no visible marks on the surface, suitable for terrace surfaces).


RVK – (Repos  Vegg Konsollfritt (Repos Wall Consoll free)). 

Inner tubes are pushed out by hand / tools from top of repos (casting visible in surface)


A purpose-designed ‘left-in’ component for easy forming of recesses in concrete walls (precast or insitu). Suitably sized to complement the sliding inner-sections of standard TSS & RVK Telescopic Connectors (all load ranges) prior to receiving cementitious grout-fill. Its design provides +/- 35mm (min) vertical tolerance and +/- 40mm (min) horizontally. The REDiBOX Permanent Recess Former is manufactured from durable and environmentally recyclable HDPE.

The embedded box element is heavily ribbed on all sides, comprehensively anchoring it into the concrete wall. The rear of the detachable face-plate has an inset perimeter rib, which provides a close fit to the box and which also maintains the shape of the recess former under concrete pressure. The unit is fully sealed, which ensures that the recess will be clean once the face-plate is removed. The face-plate can be nailed to timber moulds or shutters, the integral lugs (two on four sides) provide ample fixing points to tie-wire thAlternativelye unit to the wall reinforcement (ideal for slip-forms). The recyclable face-plate incorporates a central ‘soft-eye’ into which a hammer-claw can be inserted to pull and detach, revealing the clear recess.

Movie – Stair connections

Product series

Artical Description Capacities
TSS 20 FA Connection stair-landing 20 kN
TSS 41 Stair connection 40 kN
TSS 101 Stair connection 100 kN
TSS 102 Stair connection 100 kN
RVK 101 Stair connection 100 kN

IC Academy

For more info and films, see IC Academy. Engineering and assembly.

Sound reduction

Type Reduction Estimated value
TSS 102 with sound reduction 20-25 dB 42 dB
TSS 101/41 with vertical flange 10-12 dB 58 dB
TSS/RVK 5-8 dB 60 dB

For mere info se IC Akademiet.


ETA - CE merket.

Product Sheet

Link to productsheet can be found here

Technical manual

Technical information about this product can be found here


Follow this  link  for 2D and 3D drawings of the units

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