Abstract: A demountable wall system. The system includes a plurality of framing members including a horizontal lower framing member having upper and lower slots, a horizontal upper framing member having upper and lower slots, and vertical framing members having opposed side slots. At least one vertical rectangular panel has a lower edge inserted into the upper slot of the lower member, an upper edge inserted into the lower slot of the upper member, and side edges inserted into facing slots of the side members. A mounting member has opposed sides, an upper edge and a lower edge, the upper edge being fitted into the lower slot of the lower member. Finally, a panel trim assembly comprising a panel trim may be installed onto each edge of the vertical rectangular panel.

Abstract: A demountable wall system mountable between, but not attached to, the floor and ceiling of a building constructed of a plurality of wall sections, each wall section including at least one upper horizontal framing member having opposed upper and lower slots; a plurality of spaced, parallel vertical framing members having opposed side slots facing side slots of adjacent vertical framing members; at least one horizontal lower member having opposed upper and lower slots; at least one vertical rectangular panel with upper, lower and opposed side edges inserted into facing slots of adjacent framing members; a floor mounting member inserted into the lower slot of the lower horizontal framing member; a vertically adjustable closure member inserted into the upper slot of the upper member to close the space between the ceiling and the upper horizontal framing member; and first and second door jamb attachment plates fitted into facing slots of adjacent vertical framing members for mounting of a door.