I just bought 12, 2X4's, to frame in windows on the new bunk house. Lowes had 2 grades, premium framing at almost $8, and regular framing at $6+. I dug through half a pallet of the regulars to get 12, most had bark on two sides. We got 4 windows in, and decided they were fine for the back of the the bunk house and bedroom, but didn't offer enough view for the front. My brother in law suggested we take the Jalousie Bay Window out of the old trailer for a memento of the old trailer. Returned two of the new windows and plan on pulling the bay window out Sat. Since we still sleep in the trailer while working on the new building, I'll just screw a sheet of ply wood over the big hole. A couple pics of the new and old.