I have been looking for a long time to find a very sturdy cat tree with two “perches” big enough for my 18 lb. cats to have plenty of room, so many cat trees seem built for small cats.  I love this cat tree.  It is the sturdiest tree I’ve ever had. All I had to do to assemble it was fit a screw into a hole for each bed and twirl it to tighten.  T took me 2 minutes to assemble.  I am thrilled with this purchase and highly recommend, especially to anyone with big cats.