Abstract: A reconfigurable wall system includes a solid-core wall which is comprised of a plurality of solid-core wall panels arranged in two adjacently abutting vertical layers. Each of the adjacently abutting layers of the solid-core wall comprises a plurality of solid-core panels arranged in edge-to-edge abutment. The abutting edges form vertical seams. The vertical seams in each of the layers of the solid-core wall are laterally offset from the seams in the adjacent layer to eliminate gaps through which light and sound can penetrate or leak. A plurality of vertical studs are disposed on opposite faces of the solid-core panel. Each of the studs is aligned with a stud on the opposite face of the solid-core wall, and a plurality of horizontally spaced apart fasteners extend through the solid-core wall and connect the aligned studs on opposite sides of the solid-core wall. A plurality of wall covering panels are mounted on the vertical studs.

Abstract: A demountable overhead utility cover unit is provided for use in a building room having a generally open plan for the purpose of transitioning between ceilings of different heights. The units are assembled in an end-to-end fashion and may be disassembled to take to a new location. Each unit comprises a horizontal header having hanging brackets on a top surface, a vertical support structure attached to the header and depending therefrom, a horizontal trough attached to the bottom of the vertical support structure and adapted to abut a top surface of the wall panels of a demountable movable wall system, and a plurality of cover panels attached to the support structure and positioned between the header and trough. Each of the cover panels has a horizontally elongated front elevational shape and the panels are detachably attached to the vertical support structure.