I am going to cut hole in deck and drop tub in. It will be a fully enclosed type that is made to sit out on a deck or whatever. My question is how do I know what kind of support thing do I need to build to hold the tub under the deck. What kind of footings and columns decking and all that stuff. Would a dealer have all that info or do I look somewhere else. I am looking for the plans that will say use x by x wood for posts, use x by x for joists and so on. Any ideas? Havenet bought tub yet either or have any clue what to get so please say what you would buy if your were willing to go to about 8k on the tub. Thanks very much.

You need to get a person that builds decks. I think i'm going to do what you are going to do. I look at it this way, you will need to build a deck under the tub then a secound deck for the rim of the tub.

johnnyspa

I'll try to paint the picture. First, draw a square, say 8 x 8. add four posts spaced five feet apart, essentially making a square, 5 x 5 inside the 8 x 8 square. Those posts will sit on concrete piers/ sonotubes. the post should be 6"x6" pressure treated lumber. Accross two posts lie a triple 2"x10" or 2"x12" beam. So you now have two beams, sitting on top of two posts respectfully. Now run floor joists, 2"x10" or 2"x12", perpendicular on top of the beams, spaces 12" on center. For decking on top of the joists, 5/4 decking is fine, but 2"x6"s on a 45 degree angle is best. Face the open end of the floor joist with the same size lumber. That's you platform. Good for any portable spa. Don't forget to engineer a hatch for your friendly spa service technician in the finished deck area, we appreciate that.

Our recommendation is to leave the spa sitting above your finished deck height 20". It's like sitting in the chair you're in right now. Easy to get in and out of, and not a hazard.

I agree 100% with hottub.pool_boy