Tree Spiral Staircase

’Tree’ spiral is exactly that….! A spiral staircase made in solid polished metal using real tree trunks and branches. It is totally unique and sits proudly in our sculptural staircase product catalogue. ‘Tree’ creates such a stunning feature and is aimed at making spiral staircases desirable again.

Spiral stairs are a firm favourite at Zigzag, for their symmetry and romance, but all too often they are rickety, and can be a little unnerving to walk on! ’Tree’ is big and chunky and solid. Each branch supports a step and as they rotate they create the sculptural.

'It is a bit like being a child again when you walk up and down ’Tree’, exciting, fun and beautiful all at the same time. ’Tree’ here is finished off with our ‘Thorn’ balustrade from our nature range, oak treads and a solid oak handrail. ‘Tree’ has won awards for its innovation both in the UK and abroad.

Our 'Tree' design won Silver at the London Design Awards in 2015

london-design-award-silver-zigzag Tree Spiral - 2015 Design Award Winner

In the Workshop

The design and manufacture challenges for Tree were, as with everything we make, challenging. Firstly the tree parts had to be found that would work together to enable us to make a workable spiral step support. The sections and sizes of trunk and branch had to be just right, as did the shapes.

spine-build-1 Tree Spiral - 2015 Design Award Winner

Once we had found the right 'Tree' (no tree were harmed in the making of 'Tree' Spiral!), we then had to join the trunk to the branch to make a solid, level, well proportioned and attractive shape which could be adapted and sculpted to form the shape we needed to sit steps on. Once the pattern was made it had to be made into metal!

spine-build-2 Tree Spiral - 2015 Design Award Winner

Casting aluminium is not an exact science as the metal can have a mind of its own. Using ancient sand casting we managed to recreate the intricate details and textures of the original, the result is just beautiful, we hope!

spine-build-3 Tree Spiral - 2015 Design Award Winner

Sand casting is a dying but skilful art form, and by keeping it alive, we feel we are sustaining an amazingly skilled British industry.

spine-build-4 Tree Spiral - 2015 Design Award Winner

Although the actual casting process itself is not the most carbon neutral manufacture method, the metal used is recycled aluminium. So the weird and wonderful shapes we create could very possibly be traced back to a baked bean tin, which we think is rather comforting.

spine-build-5 Tree Spiral - 2015 Design Award Winner

The components are cast in aluminium and repeatedly dropped over a steel tube to create a perfectly functioning spiral staircase and a beautiful 'Tree' sculpture. 

spine-build-6 Tree Spiral - 2015 Design Award Winner

spine-build-7 Tree Spiral - 2015 Design Award Winner

Our intention was to design and make a spiral staircase using real tree parts that when repeated and rotated took on the abstract form of a tree creating beauty and utility combined. See here it coming together when combined with the steps, spindles, balusters and sweeping handrail.

Tree-Staircase Tree Spiral - 2015 Design Award Winner