The DNA Stair mimics the spiral of the DNA Helix, to great effect. It is an upgrade from the usual spiral staircases. Geoffrey Packer – the designer, has created something truly unique and it manages to impress us by its simplicity and beauty.
The single defining feature of the DNA stair is that it should look like a DNA strand. This look is achieved by the central staircase support and balustrade, which I have dubbed the ‘strand’. The domestic DNA strand consists of 3 main elements:
* A large diameter helical tube which supports the treads and inner balustrade.
* A small diameter helical tube that forms the inner handrail.
* Balusters which support the handrail and links the two helical tube
The strand is generally constructed of a 114mm diameter tube, with 25mm diameter balusters, and a 50mm diameter stainless steel handrail.
Link to the site.