This spiral staircase meets all the requirements for appearance, design and functionality of a modern day exterior staircase. The treads are perforated plate ideal for safety and comfort. More information about TORONTO - spiral staircase outdoor
In the new Grand Designs Magazine you will find an in-depth look at the incredible
self-heating eco-house built by Andrew and Margretta (page 20-30).
They have installed DOLLE TORONTO spiral staircase as access to/from their underground courtyard.
You can find the magazine online (free) here