Abstract: Room dividers with a layer of porous fibrous tackable/acoustic sheet material which is sufficiently durable to serve the same function as a non-tackable/acoustic layer, yet which is sufficiently porous that it can be used as a tackable/acoustic surface. This layer can be provided over a panel core, or can be provided in the form of tiles used to cover a panel core.
Abstract: A raceway for energy distribution lines in which the sections of the raceway are of the knockdown type with interlocking extrusions requiring minimal use of fasteners and in which access openings and the extruded trim plates and covers interlock with selected other extruded elements to cover gaps in adjacent sections and for closures and covers for connectors and receptacles located and supported in the raceway. The raceways are secured to the bottom margin of wall panels.