Twenty years ago I replaced a section of my 100yr old stone
foundation. At the time my father-in-law, a lifelong construction
worker guided me through the process.
One of the first steps was placing steel support columns on a footer
that got tied into the footing for the block wall. Then the block
was laid, burying the column within the wall. Since that wall has
gone 20 yrs without so much as a hairline crack I want to replicate it
as I replace 40 more feet of wall. [I also managed to do the job
without cracking any plaster upstairs-- something else I'd like to
But I can't remember the details of that footing for the steel posts.
It will be resting on hard clay. I *think*
it was a 2x2' slab
8-12" thick whose surface lay 6" below the surface of the footing.
[re-rod extending a foot on each end to tie into footing.] These were
placed every 10 feet before power excavation was begun.
If this is a common practice, or anyone has some better ideas, I'm
open to suggestions. Father in law has gone on to that great project
in the sky.
The footing for the block will be 2' wide & 1' thick, reinforced with
3 1/2" re-rod. 12 courses of block -- house is 2 story frame with
balloon construction. It's still good and stiff-- the walls are
full 2x4s, the sheathing is T&G 1x10s & full thickness novelty siding
is under the old aluminum siding.