Oh man... I measured mine to figure out the space I'd need to display it. If you want the rooms swung open at the sides so you can see inside them it's at least 61 inches long (I didn't have the roof pieces on, they are still at my folks). I got mine years ago while I was still at my parents. My mom freaked out at me when she saw it. it's HUGE. Didn't help that it was rescued from a barn so it was also very, very dirty. LOL. I have mine disassembled to save on space so it stores a little more compactly. Still need a lot of pieces and some parts for it....