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Calculations for Footings?

Posted by nostalgicfarm (My Page) on
Wed, Sep 14, 11 at 19:35

We are looking at building a 27*26 3 car detached garage in Nebraska. It will be 2 story. The calculations by the cement company seemed much larger than I am seeing online. Is there a good website to go to to figure footing depth/width based on your building size, or do you have a great figure for footings for this project? Thanks

Follow-Up Postings:

RE: Calculations for Footings?

Have you asked the supplier how they came to their figure?
What frost depth were you using? I believe Nebraska ranges from 30 to 45 inches. They may also be using more conservative soil load-bearing factors or have calculated it for a heavier construction. What does the local building inspector require?

RE: Calculations for Footings?

The soil's load bearing capability is the first large variable that must be determined.

Everything comes from that number, and if you make a mistake you end up with a cracked foundation.

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