A Question Regarding Ship Design

Here guys, as you may or may not be aware, I use detailed spreadsheets to design the specifications of starships. As I am currently in the midst of a major revamp, and having to redo all the starships/starbases/vehicles, I was wondering, currently if two polities had the same technology level in Life Support, their life support systems would take up the same space. I.e. if two polities had TL3 Life Support, and each had a ship class with a crew of 600, both would use the same space for life support systems.

Equally, though there is no tech level for accommodation, there are set levels: None, Basic, Sparse, Standard, Spacious, and Luxurious. Two polities with starships with 600 crew, both using Standard Accommodation, would use the same space for accommodation.

So, I have been thinking. Should I use a multiplier to increase/decrease the size of the life support and accommodations for different sized species? Using the largest species of a polity to determine the modifier? So, like this:

OPTION A
Multiply the system size by the species' height in metres, divided by 1.75 (the average height of a Human, from what I can gather). Well, the information I found said 1.73 metres, but average height has been creeping up for millennia. So for example, a species that is 4 metres tall would use (4/1.75) = 2.286 times the system mass.

OPTION B
Divide the species size in metres by 1.75, cube it, then multiply that by the system size. So that same 4 metre tall species will use 11.942 times the system mass.

I think OPTION B makes more sense, what about you? [You must be registered and logged in to see this link.]

I agree go with option B [You must be registered and logged in to see this link.]

Very well, I shall do that then. Thanks for the input

I have decided to take Option C, so I will use the average height of all species within a polity, rather than the height of the tallest species, as they could have specialized Accommodation, thus for a polity with 80cm tall species, a 1.8 metre tall species, and a 3 metre tall species, they will assume a 1.87 metre average.