I don't have much space in my shed. Everything is on wheels so I can move things. I placed the first set of these 4 inch ENJUCOM caster wheels on a 6 foot plant holder that I made out of plywood. They would be considered excessive for the weight of the plant holder. They move very gently. Since the first purchase I have ordered 2 more sets. Place the second set on an 8-foot 3/4-inch plywood plant holder. Very heavy plant holder. He still moves like he has no weight. The third set is on an 8ft double shelf bench in my workshop. Again plywood 3/4" thick but twice the weight of the other. Again, you can easily move a fully loaded workbench around. I will be ordering a fourth set to have on hand for future projects.