• Knock Design

    Esprimi il tuo stile!
    Scala modulare sintesi fra personalizzazione,
    versatilità e design firmato Giugiaro Architettura.


Knock Design

Esprimi il tuo stile!

Scala modulare sintesi fra personalizzazione,
versatilità e design firmato Giugiaro Architettura.

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Contact Us


Knock Design is a modular staircase that combines great flexibility with structural soundness composition, aesthetic customization and a strong design content.
The free-standing structure is made of painted iron modules connected by a patented anchoring system that provides considerable strength compared to traditional prefabricated stairs.

Adjustment is carried out by using polycarbonate spacers that allow Knock Design to adapt to all spaces, even the most critical ones in a simple and precise way. The steps are made of solid finger joint wood (choice of beech or oak), 4 cm thick, and connected to the structure by supports. The handrail is made of solid wood to match the steps, or of painted or stainless steel.

Rintal Stair System for a complete customization

Knock Design is a free-standing staircase designed to allow maximum freedom of aesthetic customization. The underlying philosophy is that of the system (Rintal Stair System) that revolutionizes the concept of prefabricated indoor stairs, transforming them into an open combination of elements, each of which can be customized, combined and re-combined to create a unique piece.

Thanks to Rintal Stair System, the structure, steps, handrail, railing, and accessories are no longer just parts of the staircase but they become tools to create a composition that reflects the owner’s style. Many types of wood and metal are available, and customers can choose among 10 different models of railings for indoor stairs, add integrated LED lighting in the structure, choose between two different models of covers and among endless decoration possibilities when it comes to the structure. In addition, customers will also be able to continue modify their staircase over time.

A staircase from Giugiaro Architettura

In addition to this incredible freedom of choice, Knock Design also offers a great design thanks to the collaboration with Giugiaro Architettura. The peculiar shape of the structure, the transparent polycarbonate spacers, the integrated lighting system in the structure – these are all details that add charm, lightness and a unique visual freshness to the product compared to the traditional world of prefabricated indoor stairs. Knock Design goes beyond the functional dimension and becomes part of the category of design staircases, turning simple stairs into a piece of furniture able to integrate in the environment in which it is inserted and to exalt it.

  • Designed in collaboration with Giugiaro Architettura
  • Great adaptability to every environment thanks to its modular design
  • LED lighting system integrated in the structure
  • Great freedom of customization in regards to colors and finishes
  • Various models of railings available
  • Spacers in transparent polycarbonate to adapt the staircase during the installation phase

Steps and handrail

  • Varnished beech wood – standard varnishes (water-based, non-toxic varnish).

Essenza legno di faggio verniciato Naturale 12

Natural no. 12

Essenza legno di faggio verniciato Naturale 27

Natural no. 27

Essenza legno di faggio verniciato Noce 17

Walnut no. 17

Essenza legno di faggio verniciato Noce 25

Walnut no. 25

Essenza legno di faggio verniciato Mogano 18

Mahogany no. 38

Essenza legno di faggio verniciato Wenge 23

Wenge no. 23

Essenza legno di faggio verniciato Bianco Semicoprente

Semi-opaque white

Essenza legno di faggio verniciato cemento


Essenza legno di faggio verniciato tortora


  • Lacquered beech wood (microsphere painting to improve resistance to abrasion, UV rays and cold liquids).

Essenza legno di faggio laccato biaco


Essenza legno di faggio laccato nero


Essenza legno di faggio laccato a campione


  • The finishes of step and handrail are always coordinated.
  • Other types of wood are available upon request.




  • Steel painted with oven-dried epoxy powders for greater resistance to wear.

Metallo grigio argento

Silver grey

Metallo bianco

White, Ral 9010

Metallo grigio testurizzato

Textured grey

Metallo nero


Metallo a campione




  • Finishes for railings can be found in the related product sheets.

Possible configurations

  • I
  • L
  • U
  • C



  • 65, 70, 75, 80, 85, 90, 95, 100 cm


  • adjustable, from 17 to 23.5 cm, first rise fixed at 19 cm.


  • adjustable, from 23 to 25 cm.


  • P1
  • P2
  • P3


  • Ramp: 400 kg/m2 on specific configurations.
  • Step: 200 kg on specific configurations.


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Services and Benefits


Free measuring, technical feasibility, technical information and plan drawings.

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Construction artisans learn directly from Rintal about the installation of the product.

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24-month warranty, certifications, and complete management of the production chain.

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Specific certifications demonstrating the safety and quality of the product you've purchased.

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