Originally Posted by Ben Grunow
Marty- those floor joists should be available in one piece (you can get 48' LVLs and TJI's I believe, they come on an 18 wheeler though-I hired a framing contractor who wanted full lengths so we got 'em, what a side show unloading by hand-lull and his 40 men made it easy but I think 5 able bodied carpenters could manage a 40' joist,maybe I'm nuts). Installing these full length would reduce labor slightly and help stiffen the floor. Also nice when floor sheathing goes down because layout for cutting and nailing is consistent instead of off setting every 13'. Might also be nice for underfloor ductwork. You could also install solid bridging every 8' or so to add a little stiffness. Just thinking out loud.
BTW I finally read your description and looked at your SU plans and I now see that you don't need diagonal bracing on your piers since they are in fact concrete.