External spiral stairs are not that common. However, that makes them even more special and unique. The projects that have planned spiral stairs, usually turn into a real architectural gems. The concrete spiral stairs make the buildings or the houses far more extravagant and classier. Although they seem more complicated for building, the newest technology helps a lot. If you have a chance for owning a house with such stairs, we recommend you not to hesitate and make them! Your house will look much more expensive and attractive.
External Spiral Stairs
Finally, you can see the process of construction on these pictures. For more details, click the link below.