Just closed the Dome on my first ever piece of bricklaying.I must say that I have felt a great sense of achievement and RELIEF that so far it has remained standing!For those interested in internal Dimensions:

Floor Dia 46"
Dome Hight 20"
Door Width 19"
Door Hight 10"

I changed my plans a little as I went along and will let you know how this oven performs when I complete the chimmney,Insulation etc.I will begin curing the oven tomorrow and hope to have a pizza out of it by memorial day.Here's a couple of pics of the Interior as it is now.