Putting this cat tree together is fairly easy. But to be honest I am not keeping it. The round cylinder is too small for even my tiny 9lb girl kitty to lay in. It is useless. The bed at the very top is not very well made. The sides of the bed are very flimsy and don't stay up. It is also much too difficult for the cat to even get into the bed at the top. The entire condo is much too small overall for my 20lb pound, 3 foot long kitty. I had the 74" condo in the past and I thought this one was just shorter with one less hide-away box and upper beds. The only parts he can use are the posts for scratching. Please do not waste your money on this particular cat tree.