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Height extension for the Portofino staircase made of black metal. Shown is a detail of the additional step, the railing bars, and the handrail.
Height extension for the Portofino staircase made of grey metal. Shown is a detail of the additional step, the railing bars, and the handrail.
Height extension for the Portofino staircase made of white metal. Shown is a detail of the additional step, the railing bars, and the handrail.

Height extension for Portofino

  • Additional step for the metal spiral staircase Portofino
  • Extension of the Portofino by 210-231 mm
  • Maximum attainable storey height with one height extension: 3234 mm
  • Maximum attainable storey height with two height extensions: 3465 mm
  • When purchasing, please ensure that the height extension has the same configuration as your staircase and install a maximum of two height extensions per staircase.
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333,60 € incl. tax excl. shipping costs*

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Description

This height extension allows you to add one extra tread to your Portofino spiral staircase. The set includes a metal tread, a central column tube, several railing posts and the required installation parts.

Match it to your staircase

Select the metal colour and diameter to match your Portofino. Make sure the size and configuration correspond to your staircase when ordering.

One height extension adds between 210 and 231 mm. With one additional tread, a maximum floor-to-floor height of 3,234 mm is possible. With two height extensions, the staircase can reach up to 3,465 mm.

Important: Install no more than two height extensions. The required stability of the staircase cannot be guaranteed with three or more additional treads.

Technical data

Basic data
Steps Steel powder-coated in grey, black or white
Spindle tubes Steel powder-coated in grey, black or white
Railing rods Steel powder-coated in grey, black or white
Handrail PVC grey, black or white
Number of steps 12 + 1 platform
Portofino 120
Radius 600 mm
Max. storey height 3003 mm
Max. storey height with one height extension 3234 mm
Max. storey height with two height extensions 3465 mm
Tread depth 210 mm
Free passage width 486 mm
Tread thickness 12 mm
Rise per step 210-231 mm
Rotation per step 29°
Platform width 650 mm
Rotation of platform 53°
Spindle diameter 108 mm
Railing height 1000 mm
Handrail diameter 40 mm
Portofino 140
Radius 700 mm
Max. storey height 3003 mm
Max. storey height with one height extension 3234 mm
Max. storey height with two height extensions 3465 mm
Tread depth 236 mm
Free passage width 586 mm
Tread thickness 12 mm
Rise per step 210-231 mm
Rotation per step 25°
Platform width 750 mm
Rotation of platform 53°
Spindle diameter 108 mm
Railing height 1000 mm
Handrail diameter 40 mm
Portofino 160
Radius 800 mm
Max. storey height 3003 mm
Max. storey height with one height extension 3234 mm
Max. storey height with two height extensions 3465 mm
Tread depth 244 mm
Free passage width 686 mm
Tread thickness 12 mm
Rise per step 210-231 mm
Rotation per step 22°
Platform width 850 mm
Rotation of platform 53°
Spindle diameter 108 mm
Railing height 1000 mm
Handrail diameter 40 mm

Downloads

Assembly instructions

Technical datasheet

Installation Video

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