If you are fascinated by this sort of thing, In US architectural practice, Architectural Graphic Standard has been the standard for the sizes of things for nearly a century. Even the old "Student Edition" is a rabbit hole book.

https://www.wiley.com/en-us/Architectural+Graphic+Standards%...

Please take (some) of my money, what a beautiful site.

I can not make out how those things were chosen. A lot of Ikea furniture, a random selection of bollards, Dolly Parton, and a Yellow-Spotted Millipede.

From the name, I thought it was going to be about fractal dimensions[1] (:

So on that tangent ... you can measure that value for ordinary objects using the "box counting" method[2], to get a notion of objects being "1.3 D" and such.

[1]https://en.wikipedia.org/wiki/Fractal_dimension

[2]https://pages.cs.wisc.edu/~ergreen/honors_thesis/dimension.h...