Grandpa Chuck wrote:
On Tue, 1 Apr 2008 19:18:49 -0700 (PDT), Big_Jake
wrote:


On Apr 1, 11:41 am, franz fripplfrappl wrote:

Thinking about replacing an old porch this summer. Central Wisconsin.

What is recommended depth for footings of corner posts?

I am in SE Wisconsin, and I believe that my local inspector made me go
42" deep here, but it could have been 48". Should be about the same
for you in Central WI, but you should probably verify with your local
building dept. I would be willing to bet that it will be 48" or 54".

JK


Here in Iowa that's about what it is too. It is because the inspectors
want them to be below the frost line.
Hi,
It depends on frost line. Here(Alberta) it is 6 feet.