Measurements for fuel pump access door (PIC INCLUDED!)

So with having to replace my fuel pump yet again and not wanting to pay a shop for labor again, I decided to do the fuel pump access door under the rear seat. This was the 2nd new pump in a year in a half and its cost me a lot to have it replaced twice. Ran fine Wednesday when I went to work…

https://www.chevyavalanchefanclub.com/cafcna/index.php?threads/measurements-for-fuel-pump-access-door-pic-included.146634/