Leveling a floor - need framing/subfloor advice - Pics
I'm just rounding 2nd on this flooring project. This is a second story 14x12 bedroom. The subfloor was originally higher than the hallway from half-assed renovations throughout the homes 90+ years in existence.
Tore up 1/2" thick plywood subfloor over sleepers and found this:
I removed the sleepers, an old fir floor, and most of the original T&G subfloor. The sistered joists were from a reno in the late 80's.
The joists are out diagnally to the room, here's the lowest part. You can see all the BS at the threshhold to the hallway.
I made a water level, and using the hallway floor height I laid out some strings to sister some new joists.
I installed the 2x10's using construction adhesive and 3 1/4" framing nails every 15" or so.
QUESTION: The bays are 24". Should I use blocking under the edge of the subfloor where it gaps the bays? I probobly should have purchased T&G but since it's so F-ed up I passed on it. Or should I install more joists between the bays, 12" OC? For that I would still have to use blocking at the ends since thre's no useable ledger on either side.