We demo'd this deck in Stone Mountain and built the deck as a "free standing" deck because we were unable to attach it to the dwelling par code requirements (an important and critical step).
Code requires the 6x6 posts to rest on 6x6 galvanized bases and on concrete footings to keep sitting water from rotting the lumber.
Notice the hardware - galvanized hurricane ties (diamond) and 1/2" galvanized screws and washers
"free standing" refers to two rows of beams and posts versus one end being attached & supported by the dwelling.
Concrete slab at the start of the stairs.