It’s flimsy quality. We built it on the driveway and moved it to the backyard and it started falling apart. Some of the slats fell off. I was able to patch it up but I expected a sturdier product. I will have to reinforce it due to coyotes in the area. Wood is very soft so if you set it up in an area with not a lot of wind and don’t move it it should be fine. My large cat (16 lbs) fell through one of the levels because the shelf isn’t screwed in and secured, it is merely placed on ledges. My cats seem to like it anyway. It’ll do for now.