In restoring my wood flooring, I found a rotten spot around the
fireplace. I cut out the rotten flooring, subflooring and then found
rot in the floor joists that were touching the masonary of the fireplace.
I plan to cut off all the rot, cripple on a 2x10 and connect it to the
rim joist with joist hangers on both sides of the fireplace. That will
shure up those two joists.
The problem is that there is a cross beam (2 2x10s nailed together)
between these two joists so that the other floor joists can be hung.
Since there is also rot on this cross beam, I need to replace them
also. It has been suggested that I place a support under the new cross
member to act as additional support, so I need to build a footing for
How should I build this footing pad? Can I just dig a 18 to 20" hole,
say 18" deep and fill it with quickqrete? Would that be strong enough?
What about just laying a 2 foot steel plate flat on the ground and
placing my supports on these?
Any help would be greatly apppreciated.