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Mortar required to build a 42" dome - 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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Mortar required to build a 42" dome

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  • Mortar required to build a 42" dome

    Does anyone have the calculation for how much mortar they using building a 42" dome? A builder just asked me.

    If you made your own mortar (either recipe), could you total up the weight?

    Pizza Ovens
    Outdoor Fireplaces

  • #2
    For my 42" dome I purchased:
    4 5-gallon buckets of sand
    2 60-lb bags of cement (not concrete mix)
    3 bags of clay

    After finishing the dome I have left over:
    1 5-gallon bucket of sand
    1/2 bag of cement
    2+ bags of clay

    I really does not take much to build this project. Just buy a little more than you might possibly need so you can pass on the leftovers to someone else!


    • #3
      I used the 3 part sand, 1 part fireclay, 1 part lime and 1 part portland recipe and used just under a bag each of the portland and lime (80lb each) and just over a bag of fireclay (60#), call it 80#. I didn't count the sand bags, but I guess you would figure 240# give or take. I used some of the sand and fireclay under the bricks of the hearth.


      • #4
        Thanks for that,

        I am estimating the following from the 3:1:1 recipe:

        150lbs of sand
        50lbs of Portland
        50lbs of Fire clay

        That's about 250lb of mortar. How does that sound?

        What would our other builders say to that?

        Pizza Ovens
        Outdoor Fireplaces