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Beams and joists are coming up. Three double 2x10, just under 3 feet spacing under the tub, single 2x10 rest of the deck. Joists are 2x6, 12 inch spacing.
That header is doubled up under the tub part of the deck I am assuming? Ya can't really see it in any of the pictures but you seem to have a handle on it so I will assume. 9 posts is good and the tighter spacing on the joists but ya can't see if the header is doubled.