That is correct, the building won't have a floor, this is really a woodshed/storage shed. I'll have six posts and they will be exposed to weather. Could I use a connecting girt a couple of inches above the bottom of each bent instead of a sill?
I think what I'm kind of getting at is making this structure look like the other old buildings on the property (my barn and house). My barn just sits on some fieldstone. If at all possible, I'd like to avoid the sonotube/ galvinized post bases, though they would be a pragmatic solution. My initial thought would be to put down a bed of gravel, then the PT 6x6 or 8x8 sills. However, $500 for just the sill alone is a little steep for my woodshed. I'd love to find a more cost effective, yet visually attractive alternative. 6x6 PT is considerably less expensive, but then a 8x8 post on top of a 6x6 sill?
