Small world. I built my woodshed 4 years ago. It is 8x8x12. Mine is the non ventilated woodshed. I keep the door closed, the ridge vent is stuffed with fiberglass. There is no ventilation.
Guys will tell you that it won't work, but, it works great! It works on the principle that water vapor will readily pass through unpainted wood walls. Also important, the floor is 16 inches or more above the ground, and the floor is wood.
Also critical is that it sets out in the sun. On a 80 degree sunny day, it gets up to 90 in the wood shed.
I live near the French Broad River, and every other night my place is wrapped up in river fog, 100 percent moisture. Plus the wind blows a lot, and it rains a lot here. My wood is never exposed to river fog or rain, or snow like we had yesterday.
I am getting oak down to 17 percent in 10 months. Bugs don't like that heat. I pull firewood out of there, it is neat and clean and dry, no bugs or spider webs on it.
The walls are rough sawn white pine and the floor is pt pine, 2x6. All day long this shed sets in the sunshine, heats up the roof and the walls, and the water vapor flows right out.