Thanks Mike. Here's some additional detail.
Door is .016.
Door Doubler is .032.
It's an exterior door that is exposed to airflow, but not structural.
Nutplates are K1100-06. (#6 - Accepting of dimples)
The actual door is approximately a 4 1/8" square.
Then it is not in any main airframe skin (wing, fuselage, etc.)?
Any opening not made by Van's may have been installed in a location that would be considered structural which means the design of the cover and the fastener pattern would have to be designed to restore the skin to its orig. strength.
Good point, Scott.
It's actually on the underside of the elevator.
That's the reason for .016.
Phil