Some progress on the subfloor structure

I found an extra 90 minutes before work this morning to rip several more floor joists and install them. Getting the joists up into the hanger-slots would be much easier with 2 people, but through trial and error I have developed a way to prop them up, one end at a time, and then slowly pound each board down for a snug fit.

I am installing the cross-blocking as I go – it's easier to nail it in that way. Every piece of lumber has a "crown" – that is, a curve.  When building, it is important to look down the edge of each board and see which way it crowns – and then put that edge upward.  (The same holds true when framing a wall.) Failure to crown all the boards in the same direction can result in undulating surfaces – no fun when it comes to attaching plywood or sheetrock.)

From this angle looking upward, a view of the future dining-room ceiling.

Approximately half of the subfloor structure is now complete.