Use the final pool level
Deck framing, openings, stairs and finished surfaces should follow the confirmed pool position and project drawing.
Build Project BriefPools & Wellness · Surrounds answer
Decking should finish the pool project without hiding the equipment or interfaces that need future access.

Deck framing, openings, stairs and finished surfaces should follow the confirmed pool position and project drawing.
Provide removable or accessible zones where equipment, plumbing or structural interfaces require inspection or service.
Deck falls, surface water and any required barrier strategy should be resolved with the overall site design.
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