In season 9 episode 11 Oscar is on a Nespresso high and pushes the copier aside discovering beautiful hardwood flooring. Didn't he discover the hardwood floor earlier in the show, in earlier seasons?...I can't remember
Yes, in season 7 episode 24 (11:25) "Dwight K. Schrute (Acting) Manager", when Dwight shoots the gun and Oscar checks out the bullethole in the ground: "My God. There is a hardwood floor underneath this carpeting. Why would they do that?"