gary wrote:

How do I attach 1/4-round oak molding to drywall panels?

What kind of nails do I need and how long should they be?

Do I pre-drill holes in the molding?
....


You'll likely have to have pilot holes.

You need nail long enough to go thru moulding and drywall thickness into
the supporting stud by about 3/4" or so.

Or, for something that light you could (altho I don't really recommend
it) use adhesive instead and not worry about where studs are much.

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