Originally Posted by nealtw
Cold air returns usually just open into the cavity, He may find a 2x4 above if they cut a stud or just blocking for firestop, he can just remove whatever is there and add blocks back in.
I have to check out more new houses I guess. In my old places they are still in the floor and lined in steel.
I hate to say it but I think I would have cut out the trim too. Uggggg
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