The Foundation

I started with a great deal on some surplus block. Laid up two walls to support a slab that would be the base of the oven. The block were laid dry on a trench filled with recycled concrete gravel. At this point I still didn't know exactly what type of oven I would be building. My last oven was a massive 7' x 5' (inside dimension) brick & calcium aluminate encased beauty that we built for a bakery-cafe that would bake 60+ loaves at a time, roast coffee, etc. This time I am leaning toward a home-hobby oven, something I can bake a dozen baguettes in, pizza parties, or...