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Constructing Oven Floor - Forno Bravo Forum: The Wood-Fired Oven Community



Photo Galleries are back! Instructions below.

Dear forum users,
Thank you for your patience with the Photo galleries. We've got your galleries online!
We have finished writing a custom script to migrate the PhotoPlog to vBulletin5’s albums.

Unfortunately V-Bulletin killed the "Photoplogs" in their software upgrade which was unforeseen and we're the first development group to have written a script for getting the galleries back... that said, it took some time to reverse engineer the code and get the albums to move over seamlessly!

Forum users will be able to access their “PhotoPlog” images through their user profile page by clicking on the “Media” tab.
They will also be able to browse other albums by going to the albums page. (On the forum site, there is a link in the black bar beside “Forums” to the albums.)

In order for users to create an album please follow the steps below.
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3) Enter Photo Gallery Title in the first field
4) Click Upload or Select from Photo Album to add photos
5) Click Post
6) Once posted, the album will be created as a “Topic” on the albums page for the public to see. The topic title will be the “Photo Gallery Title” they created before uploading their photos.

To create this migration path we used vBulletin5’s default album structure. Unfortunately, it won’t work like the “PhotoPlog” but is an album/gallery component on the forum now.
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Constructing Oven Floor

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  • Constructing Oven Floor

    Hi All,
    Boyfriend & I going back and forth on oven floor. Step 3, structural base of reinforced slab OR fabricated metal pan. He wants to do metal plate and then insulated concretemix with FB says much easier than constructing form and pouring another slab. I am worried metal plate could potentially warp if it gets too hot. I could not find any threads on use of metal pan for base.

    If someone could cut to the chase for him...what is best method to form oven floor?

  • #2
    Re: Constructing Oven Floor

    I hope your boyfriend is right because I`m well along on building on a welded steel frame made of 3"x2" heavy tubing. I think (hope) that it is overbuilt with four pieces across bottom in addition to the outer rails/frame pieces. It weighed about 400+/- pounds and I couldn`t move it after I built it until I got 3 young nephews together . I laid in fairly large pieces of thin steel plate and then filled the slightly less than 3" space with verm/portland which I topped with 3 FB boards before laying out the floor. I`m on fifth or sixth ring and have been climbing all over it w/o apparent trouble. I didn`t want the hassle of the block base and would have had to hand mix because of site. I think the verm and board layers distribute the weight and both resist compression. This can`t settle things for the two of you because:1--I`m not even done and 2--who knows how well it will all stand up and last, but I`m liking the looks of things and am highly optimistic . John


    • #3
      Re: Constructing Oven Floor

      Hi Runner,

      I'm not sure I understand what you are planning. Are you wanting to put a piece of metal on top of a block stand? Then lay down the insulation and build the oven?
      Ken H. - Kentucky
      42" Pompeii

      Pompeii Oven Construction Video Updated!

      Oven Thread ... Enclosure Thread
      Cost Spreadsheet ... Picasa Web Album


      • #4
        Re: Constructing Oven Floor

        Yes, looking to place 3/8" plate over block stand then form sides with welded angle and place concrete/ verm mix on top of that. this means base would just be around 3 1/2" vs 7 1/2". Trying not to have to form up and use cement board etc. Want plate to act as support and base. Plan on adding a center support to middle of plate. Our base is somewhere around 70" x 78" close just cant remember exact dims as I am at work!


        • #5
          Re: Constructing Oven Floor

          Provided you insulate the hearth properly, warpage due to heat should not be an issue. My oven uses "old tech" insulation under the hearth (4" of vermicrete) and my recent all day scary fires (around 8 hrs of continuous burn) only resulted in my hearth support slab reaching about 135 -140 degrees. That is as extreme as I will ever get in my fires...and 140 degrees won't warp heavy steel.

          Using the right gauge or thickness steel and the underlying support would be the only concerns.



          • #6
            Re: Constructing Oven Floor

            I would have thought a reinforced concrete suspended slab would be cheaper than an equavalent metal plate.

            Having said that, a 4 inch layer of vermiculte should insure that the metal does not over heat. Most steels can take up to about 700 degrees Fahrenheit before they start loosing tensile strenght.


            • #7
              Re: Constructing Oven Floor

              That plate is going to be heavy...you are going to need the whole neighbood to lift it in place (promise them pizza when you are all done - beer too)



              • #8
                Re: Constructing Oven Floor

                Your oven will be heavy. And the plate will probably sag in the middle? Have you calculated the displacement/sagging? If the plate sag it will definitly transfer forces into the oven brick structure. Could mean its more exposed to cracks. If the plate is well supported (no wide spans) i would not worry.

                regards from Karl