Received in timely manner.  Picture was good outline for assembly.  I'm in my 70's and no problem putting together.  Just work slowly and make sure you use the right screw for bottomrear of 2nd floor playhouse.  Parts marked clearly (A, B, etc.). There is 1 extra screw for largest ones. Really large or old cat might find top 3 perches a little tight or scarry height for elderly cat. Really attracts the scratchers.  Everyone loves the house. Great quality fur & wood. Very stable and my 6 cats love it!