Austrian norms are known by the abbreviated designation ÖNORM. They describe certain standards that are to be complied with in various fields – such as construction. The norms developed by Austrian Standards are often also recognised throughout Europe, which can be seen from the combination of letters EN (e. g. ÖNORM EN 1363).
All stairs marked with the term outdoor staircase are suitable for outdoor use. The metal parts of these stairs are galvanised and therefore extremely resistant to environmental influences of all kinds. They do not rust even in wind and weather. It is important to choose a suitable foundation for outdoor stairs. However, Minka outdoor staircases can of course also be used indoors.