I would like to say right off that I have never done this before. Before I started laying the first bricks this project loomed so large and daunting that it was hard to imagine how to start, let alone see it through to completion. What I did have was a pretty good idea of what I wanted. I have fired large kilns for the last four years and they are what I am most comfortable with. I also feel that if one is going to fire with wood it is more economical to fire a large kiln three times a year than a small kiln six or seven. I have fired five larger kilns and this kiln that is mid construction below is simply a fusion of all the things I liked most about those kilns, hopefully none of the bad, and a few small design modifications of my own. It is my own design but nothing complicated and nothing shocking.
Below is an early study on the steps. I ended up settling on something close to the middle. The steps are not one foot up as in the drawing below but eight inches meaning the kiln rises a total of sixteen inches from hearth to chimney.


I had not given much thought to the secondary airports until this morning. Mark Hewitt's kiln has some and I was looking at some pictures of David Stumpfle's new kiln and remembered that he had put in a few and after a subsequent conversation with David I popped out the bricks on the floor course before I covered them up, cut out a six inch hole and used some big eighteens to stretch the gap. They are spaced to come in right below the side stoking ports and will be used in the crash cool as well as a precautionary measure should to many ashes build up during side stoking.