My living room has a wall with a 10-foot-wide alcove, which has a set of windows that share a Craftsman-kinda window trim with a 2x3 capitol - maybe not the correct term, but see picture.
I have a 10-foot-long 2x6 board to attach above this, as a shelf. (I think it goes better with the trim style than a 1x6 board). But that’s heavy obviously so what method is good to attach it to the wall? Brackets? Pocket screws?
The wall surface is probably 1 or 2 layers of drywall or that grainy, concrete-looking wall stuff that’s in the kitchen.