Anyone know what the depth of the frost line is in North Central Pa or does someone know where I can find out? Thanks Pete

Check for your area on http://www.municode.com/Resources/OnlineLibrary.asp

Otherwise, talk to your city/county building office.

I think I've seen maps in various how to build books.  None handy right now.  But there may be one here (there's not, it turns out, but it might be a useful publication to have):

http://www.huduser.org/Publications/pdf/strdesign.pdf

In addition, asking a local builder sounds like a good idea.

And there's an interesting discussion here on the subject.

http://www.iccsafe.org/cgi-bin/ultimatebb.cgi?ubb=get_topic;f=10;t=001420

If PA-Builder drops in he may know.  He built a nice cabin in PA.

My foundation guy knew the frost situation in my area. Also, the building inspector was clear about this when issuing my permit.

QuoteMy foundation guy knew the frost situation in my area. Also, the building inspector was clear about this when issuing my permit.

Elucidate us.   5 feet , 6 feet??

Thanks everyone for the info. I plan on going down 36" for my piers to be safe.

4 ft in Eastern Canada- 1000 miles north of PA. In my case, I'm going down 3 feet and burming up 1 foot to get 4 ft. below frost. (the burming gives a nice slope away from the cabin so water runs away.)

36" - 42" should be OK for the northern tier of PA since usually there is snow cover during the coldest parts of the year.   However,  I would go 48",  erring on the side of caution.