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Calculating Footings
Posted by Jim Wills
"michele wrote:
when calculating footings, where can i find the weight of the walls? Is there an "easy" way to calculate the footings required. I know it is roof + floors + walls but how do you get the load if you don't have the weight of the walls? "
Using Reference A1010-140 to calculate the load on continuous (strip) footings.
To complete the calculation one must have a total weight of the wall per linear foot, Means does provide the weights of some wall assemblies (see B2010 112).
In general, it is safe to use a weight of 150 pounds per cubic foot for concrete, masonry or stone walls. Always consider the weight at columns separately, using the method in Reference B1010-112 or B1010-130. In general, for most one story buildings a 12” x 24” continuous footing should be adequate.
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