According to EN-ISO 14122-3-4

Type ladder: Gorter® - Vertical mounted ladder with ladder supports
Type cage: Gorter® - Aluminium cage with 5 tubular straps starting from circa 2500 mm ladder height. Distance between cage rings 1200 – 1500 mm


Floor Height: ........ mm


Ladder supports: pre-installed

  • Distance facade – ladder: 180 mm
  • Ladder equipped with safe exit step as standard


Width ladder: 550 mm
Cage: Ø 700 mm (inner size)



  • Distance to be specified
  • Base plates
  • Reinforced ladder beams with foot plate and top bracket for installation without wall brackets


Gorter vertical aluminium ladders, wall ladders or cage ladders are tailor-made and have a landing/transition platform for heights of more than 10 metres. Vertical ladders above 2,999 mm are supplied with a safety cage as standard.


Suitable for use with roof hatch

Gorter vertical ladders / wall ladders can be combined with a Gorter RHT roof hatch with a minimum opening of 1000 x 1000 mm (RHT1010).


Transition platforms

If a vertical or cage ladder is placed against an outside wall, there should be a safe landing on the roof. This implies, among other things, that the cage and ladder uprights are extended by 1,100 mm. Gorter will be pleased to provide advice on the implementation and can create safe transition platforms where necessary.


Construction and safety

The construction of the aluminium ladders and the material used guarantee a high level of stability and long-term safe usage. Vertical / cage ladders are manufactured in accordance with EN-ISO 14122-3-4.


You can contact Gorter for further information on customised vertical ladders.


Gorter vertical, wall or cage ladders:

  • Made aluminium, customised

  • In accordance with EN-ISO 14122-3-4
  • Outdoor emergency ladders with max. height of 2999 mm; if taller, a cage ladder is required.

  • With handrails for heights > 10 metres
  • Landing / platform with anti-slip grating treads
  • Including wall brackets
  • 1-year warranty on climbing devices