Decks.com. How do I build an above-ground pool deck?
The pool is essentially just adjacent to the deck. For most above-ground pools, these decks will be anywhere between 3 to 6 feet above the ground and must be laterally braced from the beams/joists to the bottom of the posts. Cross-bracing in these regions and in both axes (north/south, east/west or such) is necessary. At common pool heights, embedding posts in the foundations will not be sufficient for lateral restraint.