Divide surface with a specific dimension and keep both sides

Hi I’m dividing some surfaces using real-world inches as the basis. The idea is that I’d like to be able to adjust the division and also keep both pieces of an isotrim.

I suspect that I may be making this more complicated than it needs to be, is there a more straightforward way of going about this kind of thing? Mainly I’d like to stay in-step with how you all tend to do this kind of stuff efficiently.

It’s the merge component with the 0 and 1 at the beginning and end that seems like maybe there’s another component out there that does that:

this was another way I did the same thing: