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Foundation - Forno Bravo Forum: The Wood-Fired Oven Community



I'm Peter Reinhart! Ask Me Anything! Monday, February 15, 2016 7:00-8:00 pm EST

To kick off our AMA feature, we have invited author, chef and master bread maker and host of Pizza Quest, Peter Reinhart, to be our first host! Peter will be in the Forum on Monday, February 15th, from 7:00 - 8:00 pm EST. If you are unable to be online during the live session, you can post your questions in the sticky post. Peter will answer those questions during the live session on February 15th. You can view Peter's answers to your questions as well as what happened during the live session in the session thread.

Ask Me Anything New Forum Feature

You will notice a new forum at the top of the main page called, "Ask Me Anything". This forum will be used for live one hour "Ask Me Anything" (AMA) sessions hosted by people who are knowledgeable in different areas pertaining to wood fired ovens. How it works:
- Each AMA will have a "sticky" thread where the community can post questions they would like answered during the live session. This will allow everyone to participate even if you can't be online for the live session. These questions will not be answered by the host until the live AMA; if you need an answer quickly, you should post it in the appropriate Forum area for the community to respond.
- Another thread will be posted for the live AMA. Registered users who are logged in during the live session can interact with the host by asking questions and receiving responses.
- The live thread will remain in the AMA forum to view after the session.

We hope you enjoy this new feature! Please let us know if there is a topic that you'd like to have as an AMA and we'll look for a host!

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  • Foundation

    I'm just getting started on my backyard kitchen which will include an oven such as the Casa 80. I live in upstate NY with very cold winters. Should the slab be built on footers 3-4 feet deep below the frost line or will a 6 inch slab with rebar on compressed gravel be sufficient. Thanks

  • #2
    Re: Foundation

    I, too, would like to know what the wisdom of the forum has to say about this. We live in Rhode Island and have the same issues.


    • #3
      Re: Foundation

      Should the slab be built on footers 3-4 feet deep below the frost line or will a 6 inch slab with rebar on compressed gravel be sufficient.
      Either plan will work. If your gravel bed is well drained you shouldn't have any frost heave issues. I built one foot thick footings three feet deep, but i was building a two story chimney. If your chimney isn't much taller than you are, the slab-on-crushed-rock plan is fine.
      My geodesic oven project: part 1, part 2


      • #4
        Re: Foundation

        Try some searches on the forum for "frost heave" or "foundation" and you'll find lots of discussions about this. Here's a good one: Link
        A lot of it depends on the local weather and soil conditions. If you can get good drainage, then go for the gravel/slab. You might also want to check with local builders and see what they recommend.
        Last edited by dbhansen; 05-28-2009, 02:37 PM.
        Picasa web album
        Oven-building thread


        • #5
          Re: Foundation

          Thank you to both dbhansen and dmun (BTW, we read about your geodesic oven w/ awe). Having a link to a thread is very helpful, because I must be doing something wrong with the search feature: it returns either "nothing found" or lots of unrelated threads. (I also tried searching for discussions about oven size and gave up -- just started reading through the threads to find the different opinions.) We do have an appointment in two days to pick the brain of a local builder, but wanted to be knowledgeable enough to ask decent questions and to understand the ramifications of different approaches. Then on to the oven! Again, thanks.


          • #6
            Re: Foundation

            I live in cin. Ohio with clay soil.... I opted go go about 6" below the frost line just to be safe.

            That said I"m building my 'bar' area on a 5 in pad - not as worried about it.

            Definitely do the research and see what works for your situation.


            • #7
              Re: Foundation

              Sometimes google does better that the forum search: a search for "brick oven foundation"
              (in quotes) on google will zero in on exactly what you want, whereas the forum search for the same thing will produce more random results. Also, the forum search doesn't work on short words, like "UK" or "AAC". There is a way to limit google to a specific site, but I forget what it is. That is not so important here because most brick oven searches zero in on Forno Bravo pretty quickly.
              My geodesic oven project: part 1, part 2


              • #8
                Re: Foundation

                Ah! Yes, that does work much better -- perhaps too well ... but then it's a cold & rainy day, so I can't plant in the garden anyway.

                Once again, thank you for the help. All the other posters -- is that the right word (for those who "post"?!) -- are right. This is one terrific forum/community. It's really amazing how willing people are to help out complete strangers.


                • #9
                  Re: Foundation

                  If you haven't found this thread yet, take a look.


                  I went with a frost protected shallow foundation in Chicago, having the same frost heave concerns.

                  good luck,