Structural Types
Closed-string flights hide tread ends; open-riser designs pair steel cores with timber tread caps.
Engineers review loads when cantilevered treads exceed three-metre spans or support mezzanine edges.
Timber Selection
European oak treads finished in hardwax oil provide grip without slippery gloss films.
Ash suits pale Scandinavian interiors; walnut treads on oak strings create deliberate contrast.
Balustrades
Square spindles at ninety-millimetre centres satisfy child-safety spacing rules.
Laminated glass panels require templates cut at the workshop for glazing partners.
Winder Layout
Walking-line geometry keeps inner winder corners usable for average foot length.
Quarter-landings simplify handrail bending compared with continuous winding spirals.
Installation
Oversize flights arrive in sections joined with concealed steel dowels on site.
Temporary barriers protect open stairwells until handrail installation completes.
Cost Indicators
Fourteen-tread oak flights with simple balustrades range 8,500–11,200 EUR supplied and fitted.
Each additional winder turn adds roughly 1,400–1,900 EUR in formal quotations.