Perception can be weird though. I took a measuring tape and laid 7ft2 out on the floor of my room and it didn't seem all that big compared to 6ft2. I even lay down next to it and looked up to where the top was and I found myself disappointed and I'm only 5ft7 
It was different when I held the tape up in a standing position and saw how much higher than the doorframe it was, seemed pretty big then. And I think shoulder height makes a big impression when you work out where they'd be as compared to the shoulders of a 6ft2 person.

It was different when I held the tape up in a standing position and saw how much higher than the doorframe it was, seemed pretty big then. And I think shoulder height makes a big impression when you work out where they'd be as compared to the shoulders of a 6ft2 person.