Yes, the Floating Foundation Deck System can support the weight of a hot tub or spa.

If you are planning on placing a hot tub on top of your Floating Foundation Deck System, you will need to make one modification. At the location where the hot tub will sit, add one additional Dek-Block® pier per support board below the hot tub. If the hot tub is 8'x8' and will rest on 5 support boards, add 5 additional Dek-Block® piers (one per support board). Click Here for more information