footing for concrete porch stairs


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Old 06-10-08, 05:44 PM
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footing for concrete porch stairs

I live in central NJ and have decided to change the wooden stairs to our back patio to a concrete one. My contractor is digging out a 3-sided footing (rise=36", 4 steps, total 6.5 ft wide).
My question: how deep should the footing be? So far, it looks like he's dug an 18" deep trench for this purpose. Thank you.
 
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Old 06-17-08, 08:05 PM
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The footing should extend to the frost line, 3' in NJ
 
 

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