Spa on Deck
I know the usual answer to this question is "speak to a structural engineer." However, I am building a new deck and would like the possibility to add a hot tub in the extended future. We may never install one. I already spoke to a local structural engineering firm and they wanted ~$1,000 just to look at the plans. When I pull the hot tub permit later I'll need a structural engineer to sign off on the plans. I would just hate later if an engineer says, "You could have installed a hot tub if the footer was 1 inch bigger!"
I researched and ran some calculations to come up with footer sizes and I was hoping the community could take a look and let me know the plans look adequate to support a basic Costco tub I found.
Parameters I used:
2000 psf soil bearing capacity
130 psf for the entire deck
7'7" x 7'7"
See the plans at the following link: