I agree, the technical skill involved is very low here. I was more concerned in making sure that there WAS a proper way to handle this situation.

I may not have done the drawing 100% right, but I assumed that it would be similar in how I boxed out the hole in the rafters of my shed (per the plans). This is holding a bit more weight than my shed's roof though.

Sistering up the two joists to the left and right makes sense and what I expected was what would be needed. Thanks for the info!