If you want to have a concrete floor, there are wet-set brackets (snip)and drill-set brackets (snip) you can use with a thickened concrete edge or stem wall. If you don't want a concrete floor, precast concrete piers (snip) will be the least expensive way to go so posts won't rot.

Last edited by esshup; 01/09/15 06:57 PM. Reason: removed non-approved advertising links