Navigation Static Required?

Sorry if it's been answered on this forum, but after spending half an hour searching every term I could think of, I came up empty.

My question is, if you bake a NavMesh and an object's mesh renderer creates the hole needed to prevent AI from trying to path through it, does that object still need to be marked as a "Navigation Static"? Or is that wasting cycles?

 

Don't worry about cycles. NavMeshes are only recalculated when the data that builds them up moves. Unless you force a recalculation, it shouldn't have any impact.