The information in this article applies to:
When I try to add a floor finish layer to a Deck room, the following Information message displays:
"The deck floor structure typically has two layers: a deck planking layer and a joist layer with a framing material. Planking should not be in the floor finish."
What does this mean?
This message appears because, unlike other room types that use a finish material that spans the entire floor, deck planking is part of the structure and does not require a finish layer.
A finish layer can still be added, but this would be some other type of covering laid over the deck planking, such as astro-turf, deck carpet, etc.