Stairs are made of masive wood - oak or ash. The plating cand be done either on concrete stairs or on stairs with iron structure wich may be on straight or fan forms. The current hand can have different shapes and sizes.
The handrail can be made with straight balusters or can placed safety glass( clear, sandblasted, sandblasted with model) After finishing it’s applied a water-based ecological varnish wich is resistant to traffic.