Can I use a sit-stand desk without a monitor arm?

You technically can, but it limits the ergonomic benefit — a fixed monitor stand keeps the screen at one height, so when you raise the desk to standing height your monitor may end up too low (if the stand has a short neck) or at an awkward angle. If you're committed to a monitor-on-stand approach, choose a stand with at least 5"–8" of height adjustment so you can compensate for different desk heights. A monitor arm is a much better solution for $75–$150. FindOfficeFurniture.com can help you build the full ergonomic sit-stand setup — call 888-719-4960 for the best deals.