I need to replace the stairs to my back deck because the stringers are
rotting. The existing stringers are embedded into a small concrete pad,
and mid-supports are also placed in a small concrete pad.
I'm looking for ideas on how I should deal with the concrete. Do I
somehow try to chisel out the wood so I can set the new wood in fresh
concrete? Cut the wood level with the concrete, set the new wood on the
top surface, and build forms for a small concrete footing around the
Humm, main reason they rotted probably. I suspect the concrete was poured
after the posts and stringer were in place and took a shortcut.
The wood needs to be raised above the concrete and all water levels. It's
hard to tell for sure but with all that brick and what looks like poured
cement, it seems you have a wet yard and that was there to address it?
I'm interested in what others have to say here. I'd personally chisel out
the wood from the cement and fill it with new (with lifts to hold the
staircase and removal of rotted part) then raise the cement as needed. I
take it just the bottom of the stringer has a problem and not a high
distance, just a few inches?
Yeah, if only the bottom is rotted, you can fake it. Time to poke all
over with an icepick, and see where rot stops and solid wood starts.
Clip it off flush, dig out the embedded wood, and use the holes and some
patching concrete to install anchor bolts for the proper aluminum
standoffs (Simpson or similar). Impossible to give better advice without
seeing it in person- a lot depends on how steps were framed. Sometimes
it is easier and almost as cheap to just tear it all out and build it
back the right way. Builder was a slob- you never trap wood in
concrete, other than maybe expendable fence posts, and even then you
rest them on gravel, so the water has somewhere to go.
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