Building a 32" cob oven - my 1st ever

[Mactrev]

I am attempting my 1st outdoor adobe oven build and have a few questions for the pros. My inside diameter will be 32" . From the information that I have researched adobe oven builders recommend the following 32"x.75= 24" dome height , 24" x.63 = 15" door height ........ brick oven builders recommend 32" x.50 = 16" dome height ,16"x.63 = 10" door height. I want my oven door width to be at least 18" wide to have room for cooking 16" pizzas on occasion. I will use the oven for cooking breads, roasts etc in addition to pizza. I just wanted to make sure that I am using the correct measurements before I start building my adobe oven. This is my 1st post - Thanks for your help/comments