When I create a deck it appears as a concrete slab. The steps appear as wood, but not the deck. I've defined the room as a Deck, changed the defaults as shown below, and checked the Room Specifications as shown. None fo this seems to affect the appearance of the deck. I saw a posting of a similar problem from a user with the Pro version, but the advice on that post did not seem to work for me. I am clearly missing some detail.