Mike,
I see some larger pieces in your ash. I think that is why you may have more than some. All of it should be very fine if burned well. May be because the wood is wet. And I guess it would depend on what kind of wood we are all burning as well. I would estimate that I have about 3/4 of that Ash amount you have and I have been burning since October 1. Had colder temps and have a larger heat load. I have been through between 9-10 face cord so far. I am glad it has been mild so far this winter. :lol: I think my original hope of going through 20-24 face cord a year may be off a little if we have a "real" winter. I may end up using 26-30 face cord with a cold one.
As far as using the ash on your garden, it is good for your veggies. I did remember something about your wood source though. You said at one time you were using hardwood flooring scraps. My brother is in the hardwood flooring business and he also custom builds hardwood stair cases, some cabinets, etc. Whenever we empty his wood dust collection system in the shop, or he empties his ashes from his woodstove, he has to dump the ashes into the garbage, after they have cooled of course, if he has planed, jointed, molded, or burned any wood with any finish on it. As long as the wood had no finish on it, or he has not done any work with P.T. wood, it all goes into the garden. Ash and wood dust/chips.
There is some nasty chemicals in some of that stuff. Don't want to be eating it. :lol: Have a good one man.