i write this review after having had the nightmare of putting together another model. I guess i hoped that this one would have better directions but i was real wrong. There are a bunch of parts with different screws for almost every part making this a nightmare to put together. I have no idea what measurement scale they use, all i know is i laid out all the parts and put together this nightmare by using the picture. I'm very good at carpentry and building doing it for a living for over forty years so i improvised and got it together, had i not had this ability there is no way i could have gotten this together.
We purchased this one as a xmas present for our Barn cats and they love to lie in it and look out the window. Should the mgf put together a set of directions that make sense this would be a great buy. Beware if You do not own a power drill and have additional bolts and screws that are needed to put this together. Good luck

Pros: once together its great
Cons: directions are awful