Quote:
Originally Posted by mikeyis4dcats.
is this contractor your buddy that you were price-checking the other day?
thats a shit job.
The reason you should put in 36 inch deep footings is to get below the frost line. If you only go a few inches deep, as frost sets in, it makes the soil swell and then subside upon thawing. This will make your deck move up and down, and eventually it will have worked the structure back and forth and loosen everything.
In northern climates (like NY, MI, WI, etc. the frost line can be 6' or even more.
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Oh he went 36 inches deep...and 8 inches on top of that.