Let me say first that I’m self taught and as a teacher I’m happy I don’t have annual testing to determine my job!
Having said that, I was not my intention to have such peculiar sizes. I originally had my precision set at the default 1/16 and just changed it to 1/32 before showing the model. I assume this is a combination of the precision setting on the software as well as the precision limits I have on a the Measure Master Pro calculator app on my phone. When designing a project such as this and I know I want 3 doors I would start with the overall width of the cabinet. Then deduct the width of the structural elements of the cabinet, i.e. 1 11/16 for each frame member. Then I’d have my open space to split up. Subtract the total of all the door stiles, the gap between the doors and frames as well as any intermediate structural members. That remaining space would then be divided by the number of doors. The calculator app has I believe a precision default of 1/16 and I experience rounding, obviously at times when I don’t realize it. (You can complicate things further when you factor in that at times I use a hand held Measurer Master calculator that has possibly even less precision.)
So it seems my inexperience is the culprit, that and too many calculators?