Building Your Own Baking Deck/Oven Conversion
Here ia a link to a website by baker Rodger Copp. He has Complete instructions to convert a standard home oven into a steam-injected bread oven. You can take some of his invention or go for the whole tamale. The materials are relatively inexpensive. Now anyone can make their own baking stone to fit their particular oven. He really did a nice job.
Its well worth a look!