Hot Tub Deck Framing & Load Calculator

Hot Tub Deck Framing & Load Calculator

Check whether your planned hot tub deck meets the 100 psf minimum live load used for short-term-rental cabins in this area, and get a framing requirement for the deck under the tub.

Formula: tub psf = loaded weight ÷ (length × width). Total design = tub psf + 40 psf. Corner post = loaded weight ÷ 4. STR decks are framed to 100+ psf minimum live load.

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