An attachment arrangement (3, 53, 73, 83, 93) for connection to a first construction (1) and in such a connected state be able to hold a second construction (2) where the arrangement has an axial longitudinal extension and shows a first partial portion (3a, 53a, 73a, 83a, 93a), interactable with the first construction (1), and a second partial portion (3b, 53b, 73b, 83b, 93b), interactable with the second partial portion, said partial portions (3a, 53a, 73a, 83a, 93a, 3b, 53b, 73b, 83b, 93b) being connected to each other only by an action means (4, 54, 74, 84, 94), e.g. a resilient means, to allow said second construction (2) to be held at an adapted distance (D) from said first construction (1), wherein said second partial portion (3b, 53b, 73b, 83b, 93b) is provided with a through hole (6, 56, 76, 86, 96), wherein said partial portion in connection with the hole (6, 56, 76, 86, 96) is provided with a twist grip (25, 525, 77, 87, 97) pivotally orientated or orientable for cooperation with a key grip (26, 78, 88, 98) arranged in said first partial portion (3a, 53a, 73a, 83a, 93a) located in the end of said first partial portion (3a, 53a, 73a, 83a, 93a) facing towards said second partial portion (3b, 53b, 73b, 83b, 93b), and a tool (31) for maneuvering such an arrangement.

Components for constructing a ceiling grid across a span free of or with a limited number of suspension wires including main runners with a relatively high moment of inertia secured at their ends with brackets to wall moldings on opposing walls.

Components for constructing a ceiling grid across a span free of or with a limited number of suspension wires including main runners with a relatively high moment of inertia secured at their ends with brackets to wall moldings on opposing walls.

A device for suspending a ceiling from a building structure includes a first support wire with a first hoop portion and at least one first hook portion, a second support wire with a second hoop portion and at least one second hook portion, a first isolation cup, a second isolation cup, and a spring between the first and second isolation cups. The first and second support wires are positioned such that the first and second hoop portions are adjacent first and second ends of the spring, respectively, the first hook portion bears against the second isolation cup and the second hook portion bears against the first isolation cup.

An interior building structure is provided and comprises a plurality of side walls, each comprising an exterior surface, an interior surface, a bottom end, and a top end opposite the bottom end, the bottom end being connected to a lower base building slab of the base building and the top end being free. A lateral support structure is further provided that extends from a first wall to a second wall of the plurality of side walls. Airspace portions are formed from gaps between the side walls and the base building structure, decoupling the walls of the interior building structure from the base building structure.