I filled one of those bays completely last year, thinking I was really cutting a fat hog in the ass, but The stuff in the back didn't dry as good, so I just stack all along the back wall now, and put single rows where you see them now. Still put doubles on the ends, but that's my personal stash, and it may or may not get used this year... I gotta use up the junk sitting around in piles in the fields... They've become a bush hog obstacle...
ps:
We've got a little roughly 13 by 13 woodshed, that used to be a brooder house for one of the local farmers.
Our "burn this winter" wood goes in there, and any of the "ahead" wood is stacked outside for at least a year.
The junk/fire ring wood has it's own storage area, outside. Bark and kindling go in garbage cans at the moment,
but I'm planning to build a big ventilated box to make for easier storage. We don't stack any wood on the
ground, since our soil turns to mud in the rainy season. It's all on skids or slabbed up power poles for air
circulation. When I build the new shed I'll probably make it open on front and rear, and covered on the ends to
allow for maximum airflow.