nealtw
Contractor retired
Actually, you're all over the place;
#2The posts you put in will be point loads so they need support all the way to the foundation. So if you have a crawlspace, there will be some work to do down there. Not much.
If I was doing this much work I would go the extra and put the full length LVLs flush so I had a clean open ceiling.
#8Depending on the style of girder, I doubt it was designed to take a point load in the center.
#10And the new posts will land at X inches from one pier and X inches from another pier and so on.
#12Slide hangers onto the ends of every ceiling joist then nail the 2x12s together with 4 nails every 16" and slide that up into place,
#192x12s would be over kill, LVLs would be a waist of money.
Yes there was confusion because the OP said the wall was sitting above a 32 ft long floor girder, we got to the right information because I wasted time and posts digging deeper to get the correct information. :thbup: