A kit of parts for securing a plurality of fixtures to an elongate support member is described. The kit of parts comprises a plurality of attachment members. Each attachment member comprises an aperture for receiving the elongate support member and a fixing detail adapted to attach a fixture to the attachment member. The aperture is larger than a lateral dimension of the elongate support member to provide a gap between the attachment member and elongate support member when received in the aperture. The kit of parts also comprises a plurality of locking elements. Each locking element is adapted to be received in the aperture in the gap between the attachment member and the elongate support member to secure the attachment member to the elongate support member by friction. Further, each attachment member is adapted to engage an adjacent attachment member when secured to the elongate support member by at least one said locking element to form a hollow column secured around the elongate support member for supporting a plurality of fixtures.

A kit of parts for securing a plurality of fixtures to an elongate support member is described. The kit of parts comprises a plurality of attachment members. Each attachment member comprises an aperture for receiving the elongate support member and a fixing detail adapted to attach a fixture to the attachment member. The aperture is larger than a lateral dimension of the elongate support member to provide a gap between the attachment member and elongate support member when received in the aperture. The kit of parts also comprises a plurality of locking elements. Each locking element is adapted to be received in the aperture in the gap between the attachment member and the elongate support member to secure the attachment member to the elongate support member by friction. Further, each attachment member is adapted to engage an adjacent attachment member when secured to the elongate support member by at least one said locking element to form a hollow column secured around the elongate support member for supporting a plurality of fixtures.

A stair box system made of a stair box core, stringers, risers and treads. The inner surfaces of the stringers have a discontinuous series of mortises positioned to engage only with the treads. Each tread is beveled from the front to back surfaces and each of the riser is beveled from the top to the bottom surface. Each tread features one or more notches cut into its back surface and each riser includes a complementary hook cut into its bottom surface. The hooks on the risers engage the notches on the treads forming an open-faced channel. Removable covers fit over the treads of the stair box core. These covers protect the stair box core and/or they feature decorative building materials like hardwood or tile. The system allows the user to upgrade their stairs by replacing the covers with covers featuring a different finished surface.

The present invention relates to a spacer for a prefabricated spiral staircase, which allows adjustment of a height of a gap between footboards for a prefabricated spiral staircase in multiple steps by using minimal disks, and a prefabricated spiral staircase using the same. The spacer for a prefabricated spiral staircase comprises a cylindrical pipe, a lower cap or upper cap, a disk, a height adjustment member, and a location determining member, wherein the height of the spacer is adjusted in multiple stages according to relative rotation between the upper cap and the disk or between the lower cap and the disk.

Disclosed is a modular staircase suitable for use in a structure. The staircase comprises at least one stringer having an elongate axis. The stringer is configured for extending between a first floor of the structure and a second floor of the structure. The stringer has a box-section profile and at least two flanges projecting from a first wall of the stringer profile. The staircase further comprises at least one spigot configured for mounting with the at least two flanges such that an axis of the spigot can extend at an angle with respect to the stringer elongate axis. The staircase further comprises at least one tread support for coupling to the stringer via the at least one spigot. When the angle of the spigot axis is adjusted relative to the stringer elongate axis, the tread support is able to be orientated at an angle relative to the stringer in-use.

The step for modular staircases comprises a portion of tread (2) associated with a support body (3) suitable for permitting the reciprocal assembly of the adjacent steps (1). The support body (3) comprises a pair of beams extending substantially vertically, suitable for being arranged facing one another in mounting position so as to define respective sides (40) of the step (1). Protruding perpendicular from the sides (40) are a respective upper bracket (5) and a respective lower bracket (6), suitable one for supporting in support said portion of tread (2) and the other for being secured to an opposite bracket (5) of an adjacent step (1).

The step for modular staircases comprises a portion of tread (2) associated with a support body (3) suitable for permitting the reciprocal assembly of the adjacent steps (1). The support body (3) comprises a pair of beams extending substantially vertically, suitable for being arranged facing one another in mounting position so as to define respective sides (40) of the step (1). Protruding perpendicular from the sides (40) are a respective upper bracket (5) and a respective lower bracket (6), suitable one for supporting in support said portion of tread (2) and the other for being secured to an opposite bracket (5) of an adjacent step (1).

A curved pathway including a double helix form with no center support column includes a plurality of segments, wherein each of the segments is formed from a plurality of rods coupled to a plurality of connecting nodes. The plurality of rods are arranged in a skewed tetrahedral geometry, which causes the plurality of stair segments to form a helical structure when the plurality of segments are coupled together. The plurality of rods form a spine on an underside of the plurality of stair segments. A pathway surface is coupled to each of the segments. In alternate embodiments, the curved pathway may be formed from sheet metal creased to form a plurality of linear support locations and connecting nodes.

A curved pathway including a double helix form with no center support column includes a plurality of segments, wherein each of the segments is formed from a plurality of rods coupled to a plurality of connecting nodes. The plurality of rods are arranged in a skewed tetrahedral geometry, which causes the plurality of stair segments to form a helical structure when the plurality of segments are coupled together. The plurality of rods form a spine on an underside of the plurality of stair segments. A pathway surface is coupled to each of the segments. In alternate embodiments, the curved pathway may be formed from sheet metal creased to form a plurality of linear support locations and connecting nodes.

An assembly includes a plurality of shelving components and posts. The shelving components include a body, a male portion that extends from a first end of the body and a female portion that defines a void in an opposite, second end. The male portion is narrower and shorter than the body. The female portion is sized and shaped to receive the male portion of another shelving component. The shelving components also include first apertures defined by and extending through the male portion, and second apertures defined by and extending through the female portion. The posts are sized and shaped to be inserted into overlapping apertures of first and second shelving components, the overlapping apertures comprising (i) a first aperture in a male portion of the first component inserted into a female portion of the second component and (ii) a second aperture in the female portion of the second component.