Do you want to remove a super to extract or some of the frames. When I was getting my bee equipment to start with I got a good dollie that has a set of wheels that can be put down at upper end when you lay the dollie down. I works good for something to put supers or brood boxs on when doing inspections or getting supers off. When I am getting frames for extracting, I take an empty super on dollie, smoke the hive, remove top, and inspect the frames in super for being capped. If the super is full of capped honey remove super, if it has several frames not capped I will remove the frames that are. Depending on how many frames are taken from a super I will add some empty frames or space the frames out. As for setting super on the ground, I guess you could, if you have other hives next to the one your working on, I have set a super from one hive on top of another hives cover. Hope this helps.