I’ve attached a new draft image to preview, before finalizing. I’d like to hear any valuable feedback from the forum. Thanks for your help!
If only the decks that i see on the job were built that well. Looks good to me Zak other than the note about vertical (upright) #4 rebar in the pad footing.
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Frost line across northern US varies from 30 to 60 inches. 12 won’t work in Maryland.
I see Sonotube piers but mostly filled block piers around here.
I think there are a lot of regional variations for different climate and soil conditions. Here we have a historic 60" deep frost line (it’s been nearly forty years since the last time it froze down that deep) and expansive clays in our soil that dry and shrink, then get wet and expand. In new construction, I never see piers more than a few inches above the grade and adjustable steel columns on top of the piers.
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That’s the point of having deep Frost Line depths. You want the Footing to sit below the Frost Line!
(It may have been forty years, but I bet it came close a time or two!).
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Thank you!