Normally we cut everything to 20" long. I am thinking about switching to 18", that way we could sell some if we wanted to. Most people that buy wood can't use 20" pieces. According to my calculations, the wood shed will hold 2 cords more if the pieces are 18" instead of 20".
A chord of wood is a unit of four foot long pieces stacked four feet high and eight feet long. It stacks up smaller when cut and split. It is kind of a vague measure as only a small percent of people harvest in four foot lengths.
After a while, number of years perhaps 10 or so the pile becomes more attractive. I like rubber roofing, the thicker 60 thousands stuff cut into sections that can barely be handled. A layer of rocks at the bottom (wood contacts rocks not dirt) helps and the cover need not go all the way to the ground. It might not be all that necessary to cover the pile or long mound until fall.
How much moisture removed from green is another discussion. If you have a catalytic stove they like finely diced dry wood burned mostly with secondary air. They also make a hot spot at the catalyst and often need repair if run to get significant heat.
That whiskey odor you get going past a sawmill operation has got to have energy in those volatiles. They actually inject steam to get more heat from some (oil or bunker oil) boilers I am told by folks who work around them.
I have to decide a lot more than once whether to heap or stack in the process from near the stump to near the stove.