So you want to stack up? but all Zack will give you is stacking on a flat surface because he doesn't want your parts falling out? well fear no more as you can stack Gridfinity along your walls now along with your desk! got a wall with nothing on it? cover it in the Wall Stack-able Gridfinity bases and fill it with all sorts of different bins for all your parts needs! supports up to 6 unit tall blocks with a maximum depth of 1 unit, it can be as long as you want though! I AM NOT LIABLE FOR YOUR STUFF FALLING ON TO YOUR TABLE Thanks to Zack Freedman for the Gridfinity system! (I will put up pictures of it tomorrow when i print it)