NEED FREE BUILDING WOOD (Ceres)

Looking for decent wood that we can add on to a house and a chicken coop.
So it can't be cracking, breaking off, or have a bug infestation.
Sorry, I don't mean to sound picky since it's free but it's important that it be somewhat decent.
A few nails aren't a big deal by the way.
It would be amazing to find some plywood, that's obviously ideal.
Boards and beams like 2x4s but all various sizes would be awesome.
Thank you so much, either way I'm grateful you took the time to read this.