A freestanding partition panel for dividing a floor space includes a rigid partition frame having vertical side frame members and first and second horizontal frame members extending between the vertical side frame members to form a vertically enlarged opening through the frame, and an open space within the panel. At least one intermediate horizontal cross member extends across the vertically enlarged opening and defines upper and lower openings through the frame. The intermediate cross member and at least a selected one of the first and second horizontal frame members include a plurality of horizontally spaced apart attachment locations defining a plurality of discrete, serially adjacent mounting spaces. The partition panel further includes a utility unit that is mountable in a selected one of the mounting spaces. The partition panel further includes a first cover panel secured to the partition frame and extending horizontally between the side edge of the utility unit and the selected vertical side frame member. The first cover panel is connected to the intermediate horizontal cross member and extends vertically between the intermediate horizontal cross member and the selected one of the first and second members. A second cover panel is secured to the partition frame, and extends horizontally between the vertical side frame members. The second cover panel extends vertically between the intermediate horizontal cross member and the other of the selected one of the first and second horizontal members.