The classical design of the stringer stairs matches the prestigious architectural style of the building. The stairs cover three storeys. The individual flights are connected with bridges, which are fitted with indirect lighting. The railing with powder-coated flat-steel posts and transverse filling chords matches the classical design of the stairs.
Stairs with box-type tread structure MAT5000
Design and construction in accordance with DIN 18065
Stairs' ground plan: five-flight, straight
Flight width of the stairs up to 1,250 mm, 67 risers, 62 treads, 3 stairs head treads
1 stairs' foot landing with a surface of 3.5 x tread surface
2 half-landings with a surface of 3 x tread surface
Flat-steel stringers made of bright, sharp-edged steel (not hot-rolled flat steel) with a sophisticated look
Stringer thickness: 15 to 25 mm
Stringer height: 350 to 450 mm
With steel base plates fastened to the unfinished floor and the steel bridges
Tread structure for stairs
Box-type treads type TS400 for stringer stairs
Made of steel sheet, front and rear sides bent upwards
Welded-in top plate
Integrated footfall sound insulation
No visible weld seams in the junction between the treads and the stringers of the stairs
Suitable for tread covers made of stone or wood; with recessed top plates also suitable for carpet, tile or linoleum covers
Steel bridges with exterior stringers connecting stairs
With exterior stringers in the same design as the stringers of the stairs
Box structure of steel sheet with integrated footfall sound insulation
Interior steel profiles provide bracing for the stringers (required to compensate the high forces transferred by the stair flights)
Attached angular profiles and conduits with pull wires to accommodate the cables of the indirect lighting installed by the customer
MetallArt GE807 design railings for stairs
The described railing structure dispenses almost completely with welded connections > it meets high demands regarding the quality of the technical solution and the appearance.
Balusters: double flat-steel posts, accurately milled in the centre to hold the filling bars
Baluster supports of flat-steel brackets, with threaded bolts and cap nuts, screwed to the balusters
Hand rail supports of round bars with ribbed top sides to ensure force-fit gluing of the wooden handrail; flat-steel brackets screwed to the balusters
Balustrade filling of seven round bars running horizontally parallel to the stairs' inclination
Filling chords clamped on the face sides
In addition to the delivery and professional assembly of the stairs, we also supplied verifiable structural calculations for the string stairs, bridges and railings.
In line with trends in modern architecture, stringer stairs are increasingly designed with parapet-high steel stringers.