This is the 3rd of this brand cat tree we've purchased for our cats as the cats like them SO much! We have one in the corner of kitchen where they can look out two windows, one in the living room, and just purchased this one for the basement as we got new windows. They last! 4 & 3 years for the first two -- and are used daily by two active cats who weigh 17 & 19 pounds. They race up the cat trees & have never knocked them over. We love this brand as they are designed for the larger cat. Many others are made to hold only 20 ponds. These are the very best & worth the $ in my opinion.