This was not as sturdy as I was hoping for, but then again, makes sense for the price paid. The pieces are not as thick as other cat trees Ive purchased. They are also not very heavy, which in turn leads to this being less sturdy. This is definitely more suited for kittens, which none of my cats are any longer. Also, the instructions are not very clear, as its just basically line drawings instead of pictures and not worded either. The bracket that goes on the ramp piece is not very stable either, even though Ive tightened the screws as much as possible without stripping them. So the ramp moves each time the tree is moved. I think it would be great for kittens, or smaller adult cats. We will see how durable it turns out to be, and I will update my review as time goes by. Be well