A pole barn is a structure built of large poles rather than the usual (2x4-type) stick lumber you buy at the home center. I suspect when bay says, "For now, it will just be a pole barn." she means that they will roof the structure so it will provide shelter for the animals, but they will wait a bit before putting metal sides on the building.
When finished, a pole barn can look like any other farm structure from the outside -- roof, sides, door, windows, etc. It is setting of the large poles to support the rest of the building and the fact that with such strong support as large poles -- the building doesn't need as many supports as a stick building of the same size -- that has it called a pole barn rather than just a barn.
@Smart Red you are spot on defining the pole barn. It is poles with a roof. Beach houses and river houses are often built on poles, elevated to be above high tides (beach) and floods (river). A pole barn is strong, firmly anchored and can be closed in, thus becoming a barn without the "pole" description.
@Nyboy we had a pole barn built because most of the construction is beyond our capabilities. We didn't have a tractor big enough to lift and set the telephone poles. We didn't have the knowledge to build the rafters, level and cut the tops off the poles, and many other construction things we saw our barn builders do. We didn't have the physical abilities to stand on a 2x6 nailed on "scaffold" that criss-crossed the barn, much less scamper about on them like we saw Russell doing. The poles up, the roof on, we can handle the rest.
A porch and veranda are pretty much the same thing. In the South, porch covers almost any covered structure affixed to the house, no matter how tiny. At our previous house, we had a porch that barely fit our two rocking chairs. I would have never referred to it as a veranda. A veranda is covered, spacious and big. A veranda can be on the second story as well as the first ground level. So in the end designation, it really doesn't matter what you call it. We call it the screened in porch.
Up here we call it a pole barn even when it is walled in.
It is not framed on a foundation the way a "stick built" structure is, the poles are sunk into the ground and they support the rest of the framing.
Here in South-est, central-est Wisconsin, a pole barn is always called a pole barn (or pole shed) if it is built with poles rather then stick lumber. The 'disputed' shed is listed on county records as a pole shed. In this case, the 'poles' were 6x6 hand hewn lumber posts.
Working on the barn today. Got the tin on the roof! I ordered the trim pieces that cover the 2x6 rafters on the ends of the barn, they will be ready Friday. Going to go ahead and bite the bullet and order the tin to go around the whole barn. The alley down the middle will be left open. It is 12' tall and we could drive a cab tractor through it. See all the boards nailed willy-nilly all over the barn? That is the scaffolding they walked around on!
This is the view from my back step. Notice the gate. Convenient huh? Nope, got a smart aleck horse that can open it, so it is wired shut. See the thicket behind the barn? A couple of months ago, the barn site was a briar, brush and sapling snarl of thicket.