The invention relates to a staircase element comprising a tubular mast erectable to a vertical position onto the floor or a corresponding surface of a stair hall, and fillable with concrete; stair step elements fastened at their first end stepwise to the mast and branching off radially from the mast; at least one tubular stringer fastened to the second end of the stair step elements, fillable with concrete and connectable with fastening members to at least one wall of the stair hall, for supporting the stair step elements at their second end and for anchoring the staircase element to a building. The invention also relates to a method for building a staircase.

A module for a staircase can include a case configured to be installed on a front surface of a stair, a driving part located in an interior of the case, and a guide part driven in an upward/downward direction by the driving part to be located in the interior of the case or to be exposed to an outside of the case.

A module for a staircase can include a case configured to be installed on a front surface of a stair, a driving part located in an interior of the case, and a guide part driven in an upward/downward direction by the driving part to be located in the interior of the case or to be exposed to an outside of the case.

A prefabricated modular stairwell and elevator shaft system is described. The system can include an end panel, a first side panel, a second elevator shaft panel, a second side panel, and a first elevator shaft panel. The prefabricated modular stairwell and elevator shaft system can also include stairwell components (including one or more treads, one or more landings, and one or more handrails), one or more counterweight rails, one or more counterweight brackets, a stairwell door, and a stairwell door frame.

A prefabricated modular stairwell and elevator shaft system is described. The system can include an end panel, a first side panel, a second elevator shaft panel, a second side panel, and a first elevator shaft panel. The prefabricated modular stairwell and elevator shaft system can also include stairwell components (including one or more treads, one or more landings, and one or more handrails), one or more counterweight rails, one or more counterweight brackets, a stairwell door, and a stairwell door frame.

Described is a component (1) for shelving, shelves, bookcases, stairs and similar furnishing elements which comprises at least two laminar elements (2, 2) substantially parallel to each other and which define a plane (P) of extension of the component (1).

These laminar elements (2, 2) are for covering an intermediate layer (3), interposed between them, substantially coplanar to the plane (P). The intermediate layer (3) has a frame consisting of metal crosspieces (3, 3) connected to each other by snap fitting means (32, 33). The frame is for supporting at least one elongate element (4), made of metal material, extending along a longitudinal direction (X) substantially normal relative to the plane (P) and in which they house induction lighting means (6). The elongate element (4) is positioned inside the perimeter defined by said frame. The metal crosspieces (3, 3) have ducts (31) for the passage of cables (7) for electrifying the lighting means (6).

Described is a component (1) for shelving, shelves, bookcases, stairs and similar furnishing elements which comprises at least two laminar elements (2, 2) substantially parallel to each other and which define a plane (P) of extension of the component (1).

These laminar elements (2, 2) are for covering an intermediate layer (3), interposed between them, substantially coplanar to the plane (P). The intermediate layer (3) has a frame consisting of metal crosspieces (3, 3) connected to each other by snap fitting means (32, 33). The frame is for supporting at least one elongate element (4), made of metal material, extending along a longitudinal direction (X) substantially normal relative to the plane (P) and in which they house induction lighting means (6). The elongate element (4) is positioned inside the perimeter defined by said frame. The metal crosspieces (3, 3) have ducts (31) for the passage of cables (7) for electrifying the lighting means (6).