Looking to replace basement window but have a cross beam and board impeding the window. Looks like the purpose of it is to prevent joists from settling.
Looks like this may have been someone's remedy for a deteriorated / rotten mud sill (the flat wooden plate which sits atop the foundation wall, upon which the joists bear). If that is the case, it is ... read more
That is Oriented Strand Board (OSB), typically used for sheathing. Looks like it has been used exposed to weather, which is not its intended use. There is no reasonable repair for that, other than r ... read more