Don't worry about slathering the whole door panel and 100 Mill thick stuff.
Just do a good section of the inside of the door. Just to firm up the sound of the doors. They will closer nicer, keep some sound out and heat and cool better.
Everyone get wrapped up in seeing other guys do the 100% coverage.
10sqft is 25 bucks of Amazon. And that would be enough to do both doors.
Hell, it would be super tough to do it 100% snaking your arms through all the stupid holes on the inner skin anyways.
If nothing else just put a little under the door panel. And not worry about the outer door skin.
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I hadn't thought about checking Amazon, I looked at the cheap stuff on Summit, then decided against it since I already had spent money on the new parts, (window glass, too!) I may rethink this a little after I get a number for the tint work.
You bring up a great question though, as I saw @HINZ28 put some on the inner panel, right under the door panel. He noted a difference, but I am curious about what difference there could be installing it on the inner or outer door metal. Do you have any idea?
I firmly believe that you are correct about some is better none, and total coverage isn't necessary.


$24 shipped and taxed. 


