Spiral staircase ELI CA 01

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Concrete spiral staircase diameter 260, steps coating of white marble Spiral circular staircase of helical form, precast, without central column, external diameter of cm…... and total height cm…... produced by Rizzi in Marano Vicentino, patent n. 507749, formed by individual elements (steps) assembled in succession including the tread, the riser and the trunk of beam at the two ends that forms, when assembled, two helical beams, in which grooves the armor that connects the starting floor to the arrival floor will be inserted. Specifications of wooden helical staircases: The staircases of matter are custom-made from an outer diameter of 110 cm. to a maximum standard of 300 cm. Angle, step and riser are optimized according to the specific situation; an anchor is necessary at the half of the stair to guarantee rigidity. Steps: wood types on demand, closed riser available. Finishes: the product is suitable for the widest customization, the bands can be RAL lacquered or wall painting finish or entirely of wood, the tread can also be finished as per sample. Railings: painted steel, satin stainless steel, wood. Specifications of painted steel helical staircases: The staircases of matter are custom-made from an outer diameter of 110 cm. to a maximum standard of 300 cm. Angle, step and riser are optimized according to the specific situation; an anchor or a tie-beam at the half of the stair is necessary to guarantee rigidity. Steps: wood types on demand, glass, possibility to prepare the support for stone treads.