Hi from Canada

I put together an oven last winter and took pictures every step of the way.
I finally manage to do a video for youtube wood burning bake oven construction - YouTube

The oven base is round to save space and materials, I used percrete for insulation, the concrete for the slab was mix in a small mixer with premix with added Portland, a cast oven core, and commonly found materials from home depot for the rest of the construction.

The oven is fired 3 to 5 times a week and used almost everyday for the past 10 months and perform well for our need.

Your thoughts

Cheers
Joe