Re: 3.7 square metres?
<https://www.nasa.gov/content/mobile-launcher> states that the tower is 40 feet square - being 1600 square feet. That's about 12m square or 144 square metres.
You can see the scale of it in this picture. There are high-vis and hard-hatted people standing next to the cab on the left hand side to give a good idea of its size:
<https://www.nasa.gov/sites/default/files/thumbnails/image/ksc-20180531-mobilelauncher_0.jpg>
Biting the hand that feeds IT
