Hello, I'm about to build a 42" interior oven. I have worked out the width of the cement stand to 58" (42" + 9" for brick + 6" for insulation + 2" for mortar). I am not building a walled enclosure but instead going for the "snail" look. Should I leave an additional 1" on both sides for a reveal and a safety margin or build the stand to match the exact width of the oven so that the water will run off? Second question: With regard to the depth, I am confused as I have a set of Forno Bravo plans and can't get the math to add up. By my numbers the depth of the cement stand should be 70.5 inches but I could be wrong. My 70.5 inches assumes 42" interior diameter + 4.5" for brick + 3" insulation + 1" for mortar + 8" for the vent landing and finally + 12" for the oven landing. Should I be adding additional space for the dome over the door? I think I'm missing something important? Should I leave an additional one inch for a reveal / safety margin at the rear? I truly thank anyone who takes the time to look at my math and find the error of ways for a newbie who is just embarking on what he hopes will be an awesome experience. Thanks, John
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Stand Dimension Question by Newbie