It's just under 73 washing machines laid on their backs end-to-end.

That does assume, though, that you got the tallest possible washing machine, which stands at a whopping 47 inches, compared to the industry average of a puny not-even 41 inches.

(It's honestly mind-blowing to me that I could get this data [1] in a few seconds, when it might've been nearly impossible in a sane amount of time ~10 years ago. But I'm also enjoying just citing it really casually.)

[1]: https://www.wolframalpha.com/input?i=washing+machine