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Calculate The Area Required For a Spread Footing:
 
Calculation:
Designer/Checker:
   
Input:  
   
 
(Note: All input Metric units are converted to English units for the equations below and then the output English units are converted back to Metric)
 
 
     
Total Load on Footing (P - lb or N)
Allowable pressure or soil bearing capacity (pa - psf or Nsm)
   

     
   
   
Output:
 
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Req'd Area (Ar) =
   
 
 
 
 



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