I am having a 40 x 70 pole building built. Just started leveling off the site. I plan to live in half of the building maybe long term depending on housing market. I was assuming a concrete floor, but because of many possible changes of design as things progress, a wooden floor would allow lots of flexibility plus comfort.

Is there a general cost comparison between 2800 sqft 6" concrete floor, and whatever floor would be required to support a wood shop (nothing extra heavy - just standard stuff) What about backing the loaded truck inside to unload? Maybe a concrete pad in the bay?

I am also not sure about how to build a wooden floor inside a completed pole building. Dig down a few feet to install pedistals for the joists to sit on? This would give some crawl space to work in.

Anyone done this before or recomend a resource to check out? I can talk to a builder, but would like to have some knowledge first.