I am intrigued by the idea of the Holz hausen. It seems to be a good way to use space, and to create a very stable woodpile. What I am not so keen about the idea of filling up the core with loose wood. It seems that that would obstruct airflow on the inside of the perimeter, logs, and slow the drying. I made my own today which is the Holzhausen ring, but just a cross stack in the middle. That uses up some of the central space and also provides an inner buttress for the pile. It was a lot of fun to make, and really quite easy. Aside from all the splitting . Mine ended up being larger than I had originally planned – it is about 11 feet in diameter. I figure with that size and stacking to 6 feet tall, along with the cross, I have 2 1/2 cords socked away. The structure is incredibly stable – no wobble or looseness at all. The rows of horizontal logs are critical to keep the stack from sloping out. by the way, this is what late December in Michigan’s upper peninsula looks like this year :-(. My neighbor just bought two new snowmobiles this week, and is only able to enjoy the payments, not the riding fun :-(. Do any of you make Holzhausen? If so, do you do it in the traditional way with the core filled up? If so, how well does it dry?