Recently my wife and I bought an old farm house with some property that both the house and property was let go. The property ended up as a dumping ground for parties, etc... before we started we had to take out 4x30 yrd dumpsters of trash... Now to my question... there is a 22x22 pole bldg on the property that was in bad shape... we put on a new roof, fixed and painted the walls. I am looking for suggestions on what to do with the floor. Currently, it is a dirt floor. We would like to pour a concrete slab. We will be using it to store the tractor and other tools as well as the grandkids "toys"... no cars. I asked many contractors and have many different opinions. Some state 8 in. of concrete so the floor does not crack. Others 4 in and put forms on the inside so the concrete does not go under the wall and lift up the walls in the winter (we live in western pa) and the list goes on and on... Do you think it would be wise to dig a footer on the inside and then pour a floor within the footer to eliminate the "floating floor"? Later, if water would be an issue of coming in due to the "wood" walls... I could build a few layers of block on the footer and build the wood on top of the block... Any suggestions would be appreciated!!!