don't forget construction adhesive. I've been doing alot of that lately
( new wood ceiling) and my advice is dry fit your wood, apply liberal amounts of adhesive, screw away,... If you hit an existing rivet hole, you will know, remove and scoot the screw over. that's is. fill holes with wood puddy.
just eying it, and having installled over 500 screws so far, only hit about thee holes. no big deal.
in addition, the screws I used for my sub floor and walls, Trex 3/8 x 2 1/4 can hit the holes and tap through them. I still try to avoid, but if you really are worried about it. buy those.
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