Meet the Slider Standing Desk: a sit to stand up desktop conversion kit that lets you stand and work on your laptop or monitor. The Slider has an ergonomic design and can slide up and down on your existing furniture to a standing height about 17 inches high. The top platform surface is about 25 inches wide and 17 inches deep.
The Slider takes less space than many other comparable standing desks. It weighs about 15 lbs, so you can move it around easily. Costs under $160 at this time.