I am in the process of framing my deck structure for "picture framing". Im a carpenter but an amateur deck builder! I have the ladders built for the perpendicular sides, and the corner miter supports. My question really is what is the best way to go about this once I start? Do you install the decking first (which is just parallel w/the house) or the picture framing first and then fill in after that? I am using new Trex Transcends decking and I am also trying to figure out how to use the hidden fasteners for the installation of the picture frame as well, if possible? Any input would be appreciated! Thanks.