So here's the story: I told Brandon that because of long and short lengths I was going to need two more lengths of TREX. He went with my crazy calculation and told me how to avoid that with an extra joist. But as I moved across the deck with new length after new length it turned out that Mr. Contractor had ordered exactly what I needed and that I was losing my marbles. Even one length left. Shall I offer it on e-bay?