I have several of these about two dozen I lost count and they all hold heavy plants with 22 inch pots on them I think that’s about 2 ft.³ of dirt or something highly recommend it and for those of you who live anywhere near a travel Center truckstop get yourself a little fifth wheel puller that’s what you need to go and ask for and this will help with those that have mobility issues from pushing and pulling you just hook under the bottom of it and guide a great big plant around wherever you want that’s my little tipI've got a six foot plant in a heavy pot filled with dirt. This thing allows me to move it around easily. Very sturdy.I used it for a huge hydroponics stand so I could easily move the heavy plant stand.Loved the quality...often not found in plant stands. Loved the gray color nice option most are black.Power screwdriver is helpfulGreat Product! I even use this product in my storage building! It makes so easy to move around storage items .even a set of tires! It can hold the weight.A reviewer complained this comes un-assembled and consists of 44 parts (!).Well, come on, its actually 4 castors, 4 quarters of the expanding platform, 4 structural bars for expanding quarters (that's 12 parts) and 32 identical screws.The directions are printed large and clear - so simple and obvious how to assemble you may not need instructions.But I recommend you have a battery-powered drill with a Phillips bit to turn in those 32 screws to save your wrists.Everything fits well and comes together easily but a soft mallet will make adjustments easier. Be mindful, hitting the ABS plastic hard can break our pieces (how do I know this?).As with any assembly: lay out all your parts in an organized manner on a clear table in a comfortable space, and ideally on a work table you can stand at.Castors are each double-wheeled and seem very study and mar-proof.I received one screw with a bad head so it was good the package contained one extra screw.Get it built right (the diameter you want) the first time as its not easy to get the screws out and make re-positions for a different base diameter configuration.In all, a study, easy to assemble product.Easy to assemble and works well. Great for heavy plants.