Here is the thread I created in another forum regarding building a deck on a slope for a hot tub. Tub is a 7 person, with water weighing over 4900lbs.
6 Concrete footings, 6x6 posts, sistered 2x10 beams, 2x8 joists 12oc, and 2x6 decking. Spacing of beams and footings are in the thread I...