How many people does the Chartres Cathedral Hold?

Question

How many people does the Chartres Cathedral Hold?

Answer 1

I understand that roughly 8000 people can squeeze in at maximum capacity.

Although I can't really imagine that many people in the place. I'm just taking this number from another source. However, I just did a quick calculation an it seems the place has a floor space of better than 5000 square meters. So maybe 8000 is reasonable.