Installing Deck Support Posts

by Mike
(Southern Michigan)

I would like to pour concrete to set my support posts?

The majority of plans I read are using piers?

I live In southern Michigan what would be the best way to go?

What is the frost line depth?

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Aug 18, 2008
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Concrete Deck Footings and Piers Question
by: Editor - Rich Bergman

To be safe, I would recommend that you dig your holes at least 48" to be sure you are below the frost line. However, in some northern parts of Michigan it is possible that the frost line could go deeper.

A typical winter would probably see the frost line go down 24-36". So that is why I say 48" is a safe bet but you should confirm with your local building department to be sure about your area.

Free Standing or Ledger Connected?

Most decks do not need to be connected to the home. In that case you can use simpler footing systems to support your deck.

This could be a basic as those concrete blocks, although you can't use those in many parts of the country unless they are cabled to the ground in high wind zones.

Or you can use different kinds of ground anchors that displace weight over the surface of the soil.

There is a great article laying out all your options. Read more...

Or Watch This Video





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