Pressure treated foundations to replace
I would like to see a discussion on all weather wood foundations .I live in the mid west .Nebraska to be specific. I built an addition 16 x with a pressure treated foundation .Cost wise I can,’t honestly say if it was cheaper than concrete or blocks.I see lots of foundations around here that are cracked and bowing on older homes .I am thinking wood will hold up better.I work alone a lot and a guy can build a foundation alone.Many people in rural Nebraska replace there foundations . I am thinking of replacing mine(old limestone )crawl space on a 2 story house built in 1899.I talked to a guy in passing who told me he had replaced 2 old foundations with wood CCA. I know congress has made it illegal .I think I can get it still. Regular pressure treated lumber is was .40 the wood and plywood for all weather wood foundations is .80
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For a one man job, you could consider ICF's too. I've never considered PT wood for retro. You will need to be able to secure top and bottom of wall.
Carefully study the requirements for a wood foundation. It's survival radically depends on doing every little thing just right, drainage, stones base, concrete slab back-kick, etc. Scimp on any one of them and you gaurantee failure. Your part of the country is generall good soils for this type of foundation. You don't want to be fighting with too much wet clay.
Excellence is its own reward!
What would the footings be made? Around hear they need to be 24" wide for 2k psf loading. You would need to be at least that wide and would assume even wider since lumber would flex more than the concrete.
Footings are gravel.16"x24" if I recall corectly