Can Rustoleum roll able stone effects coating be used on plywood deck floor?

The roll-able stone effects would adhere to the plywood but there is risk of 'pin holes' through the coating, so you need to make sure you use the protective top coat/sealant. Just make sure the area is clean of all loose dirt etc. Also I would highly discourage the product over living spaces under the deck.

Behr makes a comparable product now, called Deck Over. That is a similar coating but lighter texture w/o the protective glaze. Deck Over will also do plywood. Also I would highly discourage the product over living spaces under the deck.