Master Step

A classical solution for lift and slide systems. Excellent thermal insulation provided by a unique 14-chamber PVC construction.

Stability is ensured using two closed steel sections. The one-piece construction of the threshold is faced with the frame edge from the outside and inside. Easy assembly in the HST frame is another of its many advantages.

Step Zero

This is a barrier-free version. It offers incredible comfort and minimalist design. It has all the advantages of the Master Step threshold, while being almost completely flat.


The use of a leveling overlay in combination with a 5-millimeter running rail guarantees the complete elimination of barriers. This is a modern solution for the most demanding customers and can be used in every building, from private homes to public buildings. It meets the requirements of DIN 18040-2.

Step Arrivo

A solution used in the southern regions of Europe. It has a unique design.

Threshold height is only 26 mm. Specially designed snap fasteners provide a rigid connection between PVC and aluminum elements.

Thresholds available for

Our thresholds can be fitted to: 


  • Aluplast HST 85
  • Salamander evolutionDrive HST
  • HST Rehau Synego
  • Gealan S 9000
  • Vekaslide 82


  • IV 78
  • IV 88

Additional information:

  • Maximum width: 6700 mm
  • Available high and low rails
  • Available extensions, with steel reinforcements.

Ordering ready-made thresholds has many advantages:

  • No storage costs
  • No waste
  • Saves on production time
  • Saves on production costs
  • Easy and quick assembly of the threshold to the frame
  • No mistakes in production
  • Simple order form
  • Delivery within 10 working days