Prebuilt portable garage shed?

Thanks again for all the replies on this. Yes I do need a building permit and it has been approved. I am not sure if a shed would be taxed or not but probably in my town. In the long run a garage with a poured pad would probably be better but for timing now the shed is a better fit for me. The shed that I am looking at is 14x28 and might as well be a garage other than a wood floor vs concrete.