Expand your workspace and add conference capabilities and storage. Mounts on our optional steel Filing Cabinet (not included - The Filing Cabinet is lockable, with a commercial quality, all steel construction, counter-weight, with our comfort radiused corners, and is 22"Dx15"Wx25"H. Charcoal grey to match surface and desk frames.) and Includes pin leg, or add a height-adjustable frame that matches the crank operated desks, or add 4 stainless steel 2" legs w/levelers. Place either side or both sides of desk. Fits neatly next to Personal, Pro and Flexo desks, floats with others.