I have12in X 12in extra Large Douglas Fir full dimensional beams for sale. These posts/beams are graded as structurally select #1. These are extras from our deck build. I have the certificate from the lumber grader, for these Timbers. This was a requirement by the building inspecting dept, and our engineering department. I have: 1 - 15ft 8in long 12in x12in wide for $350.00 3 - 11ft long 12in x12in wide for $250.00 each Or all 4 beams for $1,000 I can arrange delivery if required.