This helical staircase speaks for itself - "amazing sculptural elegance" with its beautifully sweeping curves - it�s no wonder it is the central feature of a new �20m apartment in central London. The inner radius was extended top and bottom to give increased tread length, producing a more twisted look. This is an Elite Metalcraft signature feature when it comes to helical staircase design, and it shows the in-depth knowledge we have acquired over the years. The outer surfaces are fibrous plastered with an oval shaped dark Oak handrail capping on both sides of the solid balustrade.