THIS by far the best cat tree made! It dimensions are wide enough for my big Siberian and it's structured soundly.  He loves the house which is actually big enough for him and set up right by a window it's a perfect constant source of stimulation for his agile mind. He loves the height and how big each platform is. You a the consummate cat tree here my cat is finicky and he went right to it hasn't left us to go hiding in other rooms stays in the room his cat tree is in our family room it brought us together again..cant thank you enough and my big GREY Siberian  forest cat Merlin thanks you too!! P.s assembly was a breeze!