Wow, am I ever happy that I found this thread. I found a free and abundant source of fresh wood chips and I've been hauling load after load to my land and spreading it thick around my land, around some fruit trees (but not too close), in my raised beds, everywhere. Then I went to a local permaculture training and the guy teaching the course said that we need to compost the chips before spreading them; otherwise they will never decompose. So I've spent the last few days raking up all the chips I've spread out, collecting them in piles so I could compost them. I went to this thread today wanting to find out the optimal dimensions of a composting heap of wood chips and lo and behold, Bryant says, no, don't compost them.... just spread them out thick. Well, I know who I'm going to listen to. Now I'm out with the rake, shovel and wheelbarrow spreading them all out ....again. It's a good thing I really love doing this work. And I've learned something very important: when in doubt, come to the Permies forums first.