A 31.5" diameter baking surface is big enough for all the breads and pizzas most of us would care to bake with one firing. 6" of perlite insulation above, around and below provide ample insulation to hold in the heat. Finally and equally important, I love the clean, minimalist look.
Thanks to Amanda, Reuben, Paula, Abby and Fang for helping to build this earth oven.
Life before mud
First firing before dome insulation