Outbuilding Foundation

[buckeyefarmer]

I used the heavy duty pressure treated that's made to go in water, and I'm not going to worry about it. The posts in the ground helps make the whole structure a lot stronger. THere are connectors you can put in concrete, and keep the posts above ground if you want. These are used a lot on commercial post frame buildings that have traditional foundations. Foundation will cost more for this type of construction.

 

[milkman636]

For even money the concrete foundation with 2x6 wall construction would be a clear choice for me. From dabbling in real estate, I know that opting for the concrete foundation and stud walls would be adding more value to your property for the same investment.

Post construction does work just fine though. I personnaly have done three barns in the last 15 years using post construction, and all three are still perfectly fine. I would be willing to bet that the posts probably look close to as good as the day I buried them. All the posts are set 4 feet below grade on top of a 12" thick, 18" diameter concrete footings. Buried wood won't outlast concrete, but it may outlast the builder.

 

[SPIKER]

You may also consider that there are pressure treated laminated posts that are far superior to standard posts. no warp-age treated al way through as well as they are treated then glue laminated into the 5.5 x 5.5 posts and they can be made with PT sections below grade and switched to std lumber above grade.

My construction 10 yrs ago was standard pole barn with PT in-ground & someday I hope to get concrete in there...

Mark