Kitchen Cabinets over bare concrete floors
Find out exactly how tall the floor will be, and use spacers (maybe pieces of the flooring) to raise the cabinets the same amount.  Ideally, install them after the floor is done.  Otherwise, try to have the flooring extend under the cabinets.  Your carpenter will probably install quarter round trim at the base of the cabinets to cover the seam where the cabinets and the floor intersect either way you do it.