It's a little difficult to describe this without pictures, but, I'll try.
25 year old home. Very "open concept".
Stair wells run perpendicular to floor joists. One side of well is
a bearing wall. Other side of well has no wall. Joists are cut
at the well ("cripple joists?"), with a header. The header simply
butt nails into double joists at both ends of the well.
The double joists have rolled slightly (outward at the bottom, despite
having full width blocking to the next joists). Leaves about a 3/8"
gap between the bottom corner of the header and the double joists.
The nails have bent, and the ends of the header have sagged about 3/8",
separating from the subfloor.
Most of the load on the header is the floor loading itself.
Preparatory for doing the ceiling in the basement, I'd like to get the
header ends back into line and the joint reinforced.
The first step would be to rent a jackpost and push the header ends
back into line.
How to pull the double joists out of their roll to tighten the gap?
I could bore big lagscrews in thru the double joists into the
ends of the header, but that's end grain and may not unroll the joists.
I'm not fond of drilling end-grain on 2x like that.
Lots of massive screws "toed-in" wouldn't hold.
Heavy duty angle mending plate?
Chris Lewis, Una confibula non set est
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