Changing the height on this is impossible the way it’s designed. I ended up taking 1 of the black plastic inserts out to give it just enough slide. The problem is when you want to raise or lower the table, you either have to be extremely careful and do it very slowly and one corner at a time, or take everything off the table to do it. When you have 2 monitors, a table top “standing desk” keyboard, dock, etc...well...that’s just not feasible. If you’re someone who adjusts the height a couple of times a day, spend more for one that cranks or an electrical one.