A cart assembly including a frame having a horizontal worksurface, a plurality of vertical support members extending upwardly from the horizontal worksurface and an upper rail spaced above the horizontal worksurface and connected to the vertical support members. The rail defines an opening at one end thereof. A screen is moveable between at least first and second positions. The screen is moveable through the opening and is supported in an interior space of the frame in the first position. The screen is disposed outside the interior space in the second position.